diff options
Diffstat (limited to 'Documentation/ABI/testing')
33 files changed, 674 insertions, 168 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget new file mode 100644 index 000000000000..01e769d6984d --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget @@ -0,0 +1,81 @@ +What: /config/usb-gadget +Date: Jun 2013 +KenelVersion: 3.11 +Description: + This group contains sub-groups corresponding to created + USB gadgets. + +What: /config/usb-gadget/gadget +Date: Jun 2013 +KenelVersion: 3.11 +Description: + + The attributes of a gadget: + + UDC - bind a gadget to UDC/unbind a gadget; + write UDC's name found in /sys/class/udc/* + to bind a gadget, empty string "" to unbind. + + bDeviceClass - USB device class code + bDeviceSubClass - USB device subclass code + bDeviceProtocol - USB device protocol code + bMaxPacketSize0 - maximum endpoint 0 packet size + bcdDevice - bcd device release number + bcdUSB - bcd USB specification version number + idProduct - product ID + idVendor - vendor ID + +What: /config/usb-gadget/gadget/configs +Date: Jun 2013 +KenelVersion: 3.11 +Description: + This group contains a USB gadget's configurations + +What: /config/usb-gadget/gadget/configs/config +Date: Jun 2013 +KernelVersion: 3.11 +Description: + The attributes of a configuration: + + bmAttributes - configuration characteristics + MaxPower - maximum power consumption from the bus + +What: /config/usb-gadget/gadget/configs/config/strings +Date: Jun 2013 +KernelVersion: 3.11 +Description: + This group contains subdirectories for language-specific + strings for this configuration. + +What: /config/usb-gadget/gadget/configs/config/strings/language +Date: Jun 2013 +KernelVersion: 3.11 +Description: + The attributes: + + configuration - configuration description + + +What: /config/usb-gadget/gadget/functions +Date: Jun 2013 +KenelVersion: 3.11 +Description: + This group contains functions available to this USB gadget. + +What: /config/usb-gadget/gadget/strings +Date: Jun 2013 +KenelVersion: 3.11 +Description: + This group contains subdirectories for language-specific + strings for this gadget. + +What: /config/usb-gadget/gadget/strings/language +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + serialnumber - gadget's serial number (string) + product - gadget's product description + manufacturer - gadget's manufacturer description + diff --git a/Documentation/ABI/testing/configfs-usb-gadget-acm b/Documentation/ABI/testing/configfs-usb-gadget-acm new file mode 100644 index 000000000000..5708a568b5f6 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-acm @@ -0,0 +1,8 @@ +What: /config/usb-gadget/gadget/functions/acm.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + + This item contains just one readonly attribute: port_num. + It contains the port number of the /dev/ttyGS<n> device + associated with acm function's instance "name". diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ecm b/Documentation/ABI/testing/configfs-usb-gadget-ecm new file mode 100644 index 000000000000..6b9a582ce0b5 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-ecm @@ -0,0 +1,16 @@ +What: /config/usb-gadget/gadget/functions/ecm.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + ifname - network device interface name associated with + this function instance + qmult - queue length multiplier for high and + super speed + host_addr - MAC address of host's end of this + Ethernet over USB link + dev_addr - MAC address of device's end of this + Ethernet over USB link + + diff --git a/Documentation/ABI/testing/configfs-usb-gadget-eem b/Documentation/ABI/testing/configfs-usb-gadget-eem new file mode 100644 index 000000000000..dbddf36b48b3 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-eem @@ -0,0 +1,14 @@ +What: /config/usb-gadget/gadget/functions/eem.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + ifname - network device interface name associated with + this function instance + qmult - queue length multiplier for high and + super speed + host_addr - MAC address of host's end of this + Ethernet over USB link + dev_addr - MAC address of device's end of this + Ethernet over USB link diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ncm b/Documentation/ABI/testing/configfs-usb-gadget-ncm new file mode 100644 index 000000000000..bc309f42357d --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-ncm @@ -0,0 +1,15 @@ +What: /config/usb-gadget/gadget/functions/ncm.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + ifname - network device interface name associated with + this function instance + qmult - queue length multiplier for high and + super speed + host_addr - MAC address of host's end of this + Ethernet over USB link + dev_addr - MAC address of device's end of this + Ethernet over USB link + diff --git a/Documentation/ABI/testing/configfs-usb-gadget-obex b/Documentation/ABI/testing/configfs-usb-gadget-obex new file mode 100644 index 000000000000..aaa5c96fb7c6 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-obex @@ -0,0 +1,9 @@ +What: /config/usb-gadget/gadget/functions/obex.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + + This item contains just one readonly attribute: port_num. + It contains the port number of the /dev/ttyGS<n> device + associated with obex function's instance "name". + diff --git a/Documentation/ABI/testing/configfs-usb-gadget-phonet b/Documentation/ABI/testing/configfs-usb-gadget-phonet new file mode 100644 index 000000000000..3e3b742cdfd7 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-phonet @@ -0,0 +1,8 @@ +What: /config/usb-gadget/gadget/functions/phonet.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + + This item contains just one readonly attribute: ifname. + It contains the network interface name assigned during + network device registration. diff --git a/Documentation/ABI/testing/configfs-usb-gadget-rndis b/Documentation/ABI/testing/configfs-usb-gadget-rndis new file mode 100644 index 000000000000..822e6dad8fc0 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-rndis @@ -0,0 +1,14 @@ +What: /config/usb-gadget/gadget/functions/rndis.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + ifname - network device interface name associated with + this function instance + qmult - queue length multiplier for high and + super speed + host_addr - MAC address of host's end of this + Ethernet over USB link + dev_addr - MAC address of device's end of this + Ethernet over USB link diff --git a/Documentation/ABI/testing/configfs-usb-gadget-serial b/Documentation/ABI/testing/configfs-usb-gadget-serial new file mode 100644 index 000000000000..16f130c1501f --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-serial @@ -0,0 +1,9 @@ +What: /config/usb-gadget/gadget/functions/gser.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + + This item contains just one readonly attribute: port_num. + It contains the port number of the /dev/ttyGS<n> device + associated with gser function's instance "name". + diff --git a/Documentation/ABI/testing/configfs-usb-gadget-subset b/Documentation/ABI/testing/configfs-usb-gadget-subset new file mode 100644 index 000000000000..154ae597cd99 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-subset @@ -0,0 +1,14 @@ +What: /config/usb-gadget/gadget/functions/geth.name +Date: Jun 2013 +KenelVersion: 3.11 +Description: + The attributes: + + ifname - network device interface name associated with + this function instance + qmult - queue length multiplier for high and + super speed + host_addr - MAC address of host's end of this + Ethernet over USB link + dev_addr - MAC address of device's end of this + Ethernet over USB link diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram index ec93fe33baa6..3f0b9ae61d8c 100644 --- a/Documentation/ABI/testing/sysfs-block-zram +++ b/Documentation/ABI/testing/sysfs-block-zram @@ -5,20 +5,21 @@ Description: The disksize file is read-write and specifies the disk size which represents the limit on the *uncompressed* worth of data that can be stored in this disk. + Unit: bytes What: /sys/block/zram<id>/initstate Date: August 2010 Contact: Nitin Gupta <ngupta@vflare.org> Description: - The disksize file is read-only and shows the initialization + The initstate file is read-only and shows the initialization state of the device. What: /sys/block/zram<id>/reset Date: August 2010 Contact: Nitin Gupta <ngupta@vflare.org> Description: - The disksize file is write-only and allows resetting the - device. The reset operation frees all the memory assocaited + The reset file is write-only and allows resetting the + device. The reset operation frees all the memory associated with this device. What: /sys/block/zram<id>/num_reads @@ -48,7 +49,7 @@ Contact: Nitin Gupta <ngupta@vflare.org> Description: The notify_free file is read-only and specifies the number of swap slot free notifications received by this device. These - notifications are send to a swap block device when a swap slot + notifications are sent to a swap block device when a swap slot is freed. This statistic is applicable only when this disk is being used as a swap disk. diff --git a/Documentation/ABI/testing/sysfs-bus-acpi b/Documentation/ABI/testing/sysfs-bus-acpi new file mode 100644 index 000000000000..7fa9cbc75344 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-acpi @@ -0,0 +1,58 @@ +What: /sys/bus/acpi/devices/.../path +Date: December 2006 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute indicates the full path of ACPI namespace + object associated with the device object. For example, + \_SB_.PCI0. + This file is not present for device objects representing + fixed ACPI hardware features (like power and sleep + buttons). + +What: /sys/bus/acpi/devices/.../modalias +Date: July 2007 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute indicates the PNP IDs of the device object. + That is acpi:HHHHHHHH:[CCCCCCC:]. Where each HHHHHHHH or + CCCCCCCC contains device object's PNPID (_HID or _CID). + +What: /sys/bus/acpi/devices/.../hid +Date: April 2005 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute indicates the hardware ID (_HID) of the + device object. For example, PNP0103. + This file is present for device objects having the _HID + control method. + +What: /sys/bus/acpi/devices/.../description +Date: October 2012 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute contains the output of the device object's + _STR control method, if present. + +What: /sys/bus/acpi/devices/.../adr +Date: October 2012 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute contains the output of the device object's + _ADR control method, which is present for ACPI device + objects representing devices having standard enumeration + algorithms, such as PCI. + +What: /sys/bus/acpi/devices/.../uid +Date: October 2012 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + This attribute contains the output of the device object's + _UID control method, if present. + +What: /sys/bus/acpi/devices/.../eject +Date: December 2006 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + Writing 1 to this attribute will trigger hot removal of + this device object. This file exists for every device + object that has _EJ0 method. diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events index 0adeb524c0d4..3c1cc24361bd 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -27,14 +27,36 @@ Description: Generic performance monitoring events "basename". -What: /sys/devices/cpu/events/PM_LD_MISS_L1 - /sys/devices/cpu/events/PM_LD_REF_L1 - /sys/devices/cpu/events/PM_CYC +What: /sys/devices/cpu/events/PM_1PLUS_PPC_CMPL /sys/devices/cpu/events/PM_BRU_FIN + /sys/devices/cpu/events/PM_BR_MPRED + /sys/devices/cpu/events/PM_CMPLU_STALL + /sys/devices/cpu/events/PM_CMPLU_STALL_BRU + /sys/devices/cpu/events/PM_CMPLU_STALL_DCACHE_MISS + /sys/devices/cpu/events/PM_CMPLU_STALL_DFU + /sys/devices/cpu/events/PM_CMPLU_STALL_DIV + /sys/devices/cpu/events/PM_CMPLU_STALL_ERAT_MISS + /sys/devices/cpu/events/PM_CMPLU_STALL_FXU + /sys/devices/cpu/events/PM_CMPLU_STALL_IFU + /sys/devices/cpu/events/PM_CMPLU_STALL_LSU + /sys/devices/cpu/events/PM_CMPLU_STALL_REJECT + /sys/devices/cpu/events/PM_CMPLU_STALL_SCALAR + /sys/devices/cpu/events/PM_CMPLU_STALL_SCALAR_LONG + /sys/devices/cpu/events/PM_CMPLU_STALL_STORE + /sys/devices/cpu/events/PM_CMPLU_STALL_THRD + /sys/devices/cpu/events/PM_CMPLU_STALL_VECTOR + /sys/devices/cpu/events/PM_CMPLU_STALL_VECTOR_LONG + /sys/devices/cpu/events/PM_CYC + /sys/devices/cpu/events/PM_GCT_NOSLOT_BR_MPRED + /sys/devices/cpu/events/PM_GCT_NOSLOT_BR_MPRED_IC_MISS /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC - /sys/devices/cpu/events/PM_BRU_MPRED + /sys/devices/cpu/events/PM_GCT_NOSLOT_IC_MISS + /sys/devices/cpu/events/PM_GRP_CMPL /sys/devices/cpu/events/PM_INST_CMPL - /sys/devices/cpu/events/PM_CMPLU_STALL + /sys/devices/cpu/events/PM_LD_MISS_L1 + /sys/devices/cpu/events/PM_LD_REF_L1 + /sys/devices/cpu/events/PM_RUN_CYC + /sys/devices/cpu/events/PM_RUN_INST_CMPL Date: 2013/01/08 diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-format b/Documentation/ABI/testing/sysfs-bus-event_source-devices-format index 079afc71363d..77f47ff5ee02 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-format +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-format @@ -9,6 +9,12 @@ Description: we want to export, so that userspace can deal with sane name/value pairs. + Userspace must be prepared for the possibility that attributes + define overlapping bit ranges. For example: + attr1 = 'config:0-23' + attr2 = 'config:0-7' + attr3 = 'config:12-35' + Example: 'config1:1,6-10,44' Defines contents of attribute that occupies bits 1,6-10,44 of perf_event_attr::config1. diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 2e33dc6b2346..39c8de0e53d0 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -351,6 +351,7 @@ Description: 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 100kohm_to_gnd: connected to ground via an 100kOhm resistor, + 500kohm_to_gnd: connected to ground via a 500kOhm resistor, three_state: left floating. For a list of available output power down options read outX_powerdown_mode_available. If Y is not present the @@ -690,45 +691,45 @@ Description: Actually start the buffer capture up. Will start trigger if first device and appropriate. -What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements +What: /sys/bus/iio/devices/iio:deviceX/scan_elements KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Directory containing interfaces for elements that will be captured for a single triggered sample set in the buffer. -What: /sys/.../buffer/scan_elements/in_accel_x_en -What: /sys/.../buffer/scan_elements/in_accel_y_en -What: /sys/.../buffer/scan_elements/in_accel_z_en -What: /sys/.../buffer/scan_elements/in_anglvel_x_en -What: /sys/.../buffer/scan_elements/in_anglvel_y_en -What: /sys/.../buffer/scan_elements/in_anglvel_z_en -What: /sys/.../buffer/scan_elements/in_magn_x_en -What: /sys/.../buffer/scan_elements/in_magn_y_en -What: /sys/.../buffer/scan_elements/in_magn_z_en -What: /sys/.../buffer/scan_elements/in_timestamp_en -What: /sys/.../buffer/scan_elements/in_voltageY_supply_en -What: /sys/.../buffer/scan_elements/in_voltageY_en -What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en -What: /sys/.../buffer/scan_elements/in_incli_x_en -What: /sys/.../buffer/scan_elements/in_incli_y_en -What: /sys/.../buffer/scan_elements/in_pressureY_en -What: /sys/.../buffer/scan_elements/in_pressure_en +What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en +What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en +What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en +What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en +What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en +What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en +What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en +What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en +What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en +What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en +What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en +What: /sys/.../iio:deviceX/scan_elements/in_pressure_en KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Scan element control for triggered data capture. -What: /sys/.../buffer/scan_elements/in_accel_type -What: /sys/.../buffer/scan_elements/in_anglvel_type -What: /sys/.../buffer/scan_elements/in_magn_type -What: /sys/.../buffer/scan_elements/in_incli_type -What: /sys/.../buffer/scan_elements/in_voltageY_type -What: /sys/.../buffer/scan_elements/in_voltage_type -What: /sys/.../buffer/scan_elements/in_voltageY_supply_type -What: /sys/.../buffer/scan_elements/in_timestamp_type -What: /sys/.../buffer/scan_elements/in_pressureY_type -What: /sys/.../buffer/scan_elements/in_pressure_type +What: /sys/.../iio:deviceX/scan_elements/in_accel_type +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type +What: /sys/.../iio:deviceX/scan_elements/in_magn_type +What: /sys/.../iio:deviceX/scan_elements/in_incli_type +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type +What: /sys/.../iio:deviceX/scan_elements/in_voltage_type +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type +What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type +What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type +What: /sys/.../iio:deviceX/scan_elements/in_pressure_type KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: @@ -752,29 +753,29 @@ Description: For other storage combinations this attribute will be extended appropriately. -What: /sys/.../buffer/scan_elements/in_accel_type_available +What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: If the type parameter can take one of a small set of values, this attribute lists them. -What: /sys/.../buffer/scan_elements/in_voltageY_index -What: /sys/.../buffer/scan_elements/in_voltageY_supply_index -What: /sys/.../buffer/scan_elements/in_accel_x_index -What: /sys/.../buffer/scan_elements/in_accel_y_index -What: /sys/.../buffer/scan_elements/in_accel_z_index -What: /sys/.../buffer/scan_elements/in_anglvel_x_index -What: /sys/.../buffer/scan_elements/in_anglvel_y_index -What: /sys/.../buffer/scan_elements/in_anglvel_z_index -What: /sys/.../buffer/scan_elements/in_magn_x_index -What: /sys/.../buffer/scan_elements/in_magn_y_index -What: /sys/.../buffer/scan_elements/in_magn_z_index -What: /sys/.../buffer/scan_elements/in_incli_x_index -What: /sys/.../buffer/scan_elements/in_incli_y_index -What: /sys/.../buffer/scan_elements/in_timestamp_index -What: /sys/.../buffer/scan_elements/in_pressureY_index -What: /sys/.../buffer/scan_elements/in_pressure_index +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index +What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index +What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index +What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index +What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index +What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index +What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index +What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index +What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index +What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index +What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index +What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index +What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index +What: /sys/.../iio:deviceX/scan_elements/in_pressure_index KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: @@ -792,3 +793,21 @@ Contact: linux-iio@vger.kernel.org Description: This attribute is used to read the amount of quadrature error present in the device at a given time. + +What: /sys/.../iio:deviceX/in_accelX_power_mode +KernelVersion: 3.11 +Contact: linux-iio@vger.kernel.org +Description: + Specifies the chip power mode. + low_noise: reduce noise level from ADC, + low_power: enable low current consumption. + For a list of available output power modes read + in_accel_power_mode_available. + +What: /sys/bus/iio/devices/iio:deviceX/store_eeprom +KernelVersion: 3.4.0 +Contact: linux-iio@vger.kernel.org +Description: + Writing '1' stores the current device configuration into + on-chip EEPROM. After power-up or chip reset the device will + automatically load the saved configuration. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 index 2ce9c3f68eee..a91aeabe7b24 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 @@ -18,14 +18,6 @@ Description: Reading returns either '1' or '0'. '1' means that the pllY is locked. -What: /sys/bus/iio/devices/iio:deviceX/store_eeprom -KernelVersion: 3.4.0 -Contact: linux-iio@vger.kernel.org -Description: - Writing '1' stores the current device configuration into - on-chip EEPROM. After power-up or chip reset the device will - automatically load the saved configuration. - What: /sys/bus/iio/devices/iio:deviceX/sync_dividers KernelVersion: 3.4.0 Contact: linux-iio@vger.kernel.org diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 index d89aded01c5a..1254457a726e 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 @@ -18,4 +18,4 @@ Description: adjust the reference frequency accordingly. The value written has no effect until out_altvoltageY_frequency is updated. Consider to use out_altvoltageY_powerdown to power - down the PLL and it's RFOut buffers during REFin changes. + down the PLL and its RFOut buffers during REFin changes. diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 1ce5ae329c04..5210a51c90fd 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -64,7 +64,6 @@ Description: Writing a non-zero value to this attribute will force a rescan of all PCI buses in the system, and re-discover previously removed devices. - Depends on CONFIG_HOTPLUG. What: /sys/bus/pci/devices/.../msi_irqs/ Date: September, 2011 @@ -90,7 +89,6 @@ Contact: Linux PCI developers <linux-pci@vger.kernel.org> Description: Writing a non-zero value to this attribute will hot-remove the PCI device and any of its children. - Depends on CONFIG_HOTPLUG. What: /sys/bus/pci/devices/.../pci_bus/.../rescan Date: May 2011 @@ -99,7 +97,7 @@ Description: Writing a non-zero value to this attribute will force a rescan of the bus and all child buses, and re-discover devices removed earlier from this - part of the device tree. Depends on CONFIG_HOTPLUG. + part of the device tree. What: /sys/bus/pci/devices/.../rescan Date: January 2009 @@ -109,7 +107,6 @@ Description: force a rescan of the device's parent bus and all child buses, and re-discover devices removed earlier from this part of the device tree. - Depends on CONFIG_HOTPLUG. What: /sys/bus/pci/devices/.../reset Date: July 2009 diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index f093e59cbe5f..1430f584b266 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -1,81 +1,3 @@ -What: /sys/bus/usb/devices/.../power/autosuspend -Date: March 2007 -KernelVersion: 2.6.21 -Contact: Alan Stern <stern@rowland.harvard.edu> -Description: - Each USB device directory will contain a file named - power/autosuspend. This file holds the time (in seconds) - the device must be idle before it will be autosuspended. - 0 means the device will be autosuspended as soon as - possible. Negative values will prevent the device from - being autosuspended at all, and writing a negative value - will resume the device if it is already suspended. - - The autosuspend delay for newly-created devices is set to - the value of the usbcore.autosuspend module parameter. - -What: /sys/bus/usb/devices/.../power/persist -Date: May 2007 -KernelVersion: 2.6.23 -Contact: Alan Stern <stern@rowland.harvard.edu> -Description: - If CONFIG_USB_PERSIST is set, then each USB device directory - will contain a file named power/persist. The file holds a - boolean value (0 or 1) indicating whether or not the - "USB-Persist" facility is enabled for the device. Since the - facility is inherently dangerous, it is disabled by default - for all devices except hubs. For more information, see - Documentation/usb/persist.txt. - -What: /sys/bus/usb/device/.../power/connected_duration -Date: January 2008 -KernelVersion: 2.6.25 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - If CONFIG_PM_RUNTIME is enabled then this file - is present. When read, it returns the total time (in msec) - that the USB device has been connected to the machine. This - file is read-only. -Users: - PowerTOP <power@bughost.org> - http://www.lesswatts.org/projects/powertop/ - -What: /sys/bus/usb/device/.../power/active_duration -Date: January 2008 -KernelVersion: 2.6.25 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - If CONFIG_PM_RUNTIME is enabled then this file - is present. When read, it returns the total time (in msec) - that the USB device has been active, i.e. not in a suspended - state. This file is read-only. - - Tools can use this file and the connected_duration file to - compute the percentage of time that a device has been active. - For example, - echo $((100 * `cat active_duration` / `cat connected_duration`)) - will give an integer percentage. Note that this does not - account for counter wrap. -Users: - PowerTOP <power@bughost.org> - http://www.lesswatts.org/projects/powertop/ - -What: /sys/bus/usb/device/<busnum>-<devnum>...:<config num>-<interface num>/supports_autosuspend -Date: January 2008 -KernelVersion: 2.6.27 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - When read, this file returns 1 if the interface driver - for this interface supports autosuspend. It also - returns 1 if no driver has claimed this interface, as an - unclaimed interface will not stop the device from being - autosuspended if all other interface drivers are idle. - The file returns 0 if autosuspend support has not been - added to the driver. -Users: - USB PM tool - git://git.moblin.org/users/sarah/usb-pm-tool/ - What: /sys/bus/usb/device/.../authorized Date: July 2008 KernelVersion: 2.6.26 @@ -172,17 +94,6 @@ Description: device IDs, exactly like reading from the entry "/sys/bus/usb/drivers/.../new_id" -What: /sys/bus/usb/device/.../avoid_reset_quirk -Date: December 2009 -Contact: Oliver Neukum <oliver@neukum.org> -Description: - Writing 1 to this file tells the kernel that this - device will morph into another mode when it is reset. - Drivers will not use reset for error handling for - such devices. -Users: - usb_modeswitch - What: /sys/bus/usb/devices/.../power/usb2_hardware_lpm Date: September 2011 Contact: Andiry Xu <andiry.xu@amd.com> @@ -236,3 +147,30 @@ Description: This attribute is to expose these information to user space. The file will read "hotplug", "wired" and "not used" if the information is available, and "unknown" otherwise. + +What: /sys/bus/usb/devices/.../power/usb2_lpm_l1_timeout +Date: May 2013 +Contact: Mathias Nyman <mathias.nyman@linux.intel.com> +Description: + USB 2.0 devices may support hardware link power management (LPM) + L1 sleep state. The usb2_lpm_l1_timeout attribute allows + tuning the timeout for L1 inactivity timer (LPM timer), e.g. + needed inactivity time before host requests the device to go to L1 sleep. + Useful for power management tuning. + Supported values are 0 - 65535 microseconds. + +What: /sys/bus/usb/devices/.../power/usb2_lpm_besl +Date: May 2013 +Contact: Mathias Nyman <mathias.nyman@linux.intel.com> +Description: + USB 2.0 devices that support hardware link power management (LPM) + L1 sleep state now use a best effort service latency value (BESL) to + indicate the best effort to resumption of service to the device after the + initiation of the resume event. + If the device does not have a preferred besl value then the host can select + one instead. This usb2_lpm_besl attribute allows to tune the host selected besl + value in order to tune power saving and service latency. + + Supported values are 0 - 15. + More information on how besl values map to microseconds can be found in + USB 2.0 ECN Errata for Link Power Management, section 4.10) diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq index 0ba6ea2f89d9..ee39acacf6f8 100644 --- a/Documentation/ABI/testing/sysfs-class-devfreq +++ b/Documentation/ABI/testing/sysfs-class-devfreq @@ -78,3 +78,23 @@ Contact: Nishanth Menon <nm@ti.com> Description: The /sys/class/devfreq/.../available_governors shows currently available governors in the system. + +What: /sys/class/devfreq/.../min_freq +Date: January 2013 +Contact: MyungJoo Ham <myungjoo.ham@samsung.com> +Description: + The /sys/class/devfreq/.../min_freq shows and stores + the minimum frequency requested by users. It is 0 if + the user does not care. min_freq overrides the + frequency requested by governors. + +What: /sys/class/devfreq/.../max_freq +Date: January 2013 +Contact: MyungJoo Ham <myungjoo.ham@samsung.com> +Description: + The /sys/class/devfreq/.../max_freq shows and stores + the maximum frequency requested by users. It is 0 if + the user does not care. max_freq overrides the + frequency requested by governors and min_freq. + The max_freq overrides min_freq because max_freq may be + used to throttle devices to avoid overheating. diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd index 3105644b3bfc..bfd119ace6ad 100644 --- a/Documentation/ABI/testing/sysfs-class-mtd +++ b/Documentation/ABI/testing/sysfs-class-mtd @@ -128,9 +128,8 @@ KernelVersion: 3.4 Contact: linux-mtd@lists.infradead.org Description: Maximum number of bit errors that the device is capable of - correcting within each region covering an ecc step. This will - always be a non-negative integer. Note that some devices will - have multiple ecc steps within each writesize region. + correcting within each region covering an ECC step (see + ecc_step_size). This will always be a non-negative integer. In the case of devices lacking any ECC capability, it is 0. @@ -173,3 +172,15 @@ Description: This is generally applicable only to NAND flash devices with ECC capability. It is ignored on devices lacking ECC capability; i.e., devices for which ecc_strength is zero. + +What: /sys/class/mtd/mtdX/ecc_step_size +Date: May 2013 +KernelVersion: 3.10 +Contact: linux-mtd@lists.infradead.org +Description: + The size of a single region covered by ECC, known as the ECC + step. Devices may have several equally sized ECC steps within + each writesize region. + + It will always be a non-negative integer. In the case of + devices lacking any ECC capability, it is 0. diff --git a/Documentation/ABI/testing/sysfs-class-pwm b/Documentation/ABI/testing/sysfs-class-pwm new file mode 100644 index 000000000000..c479d77b67c5 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-pwm @@ -0,0 +1,79 @@ +What: /sys/class/pwm/ +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + The pwm/ class sub-directory belongs to the Generic PWM + Framework and provides a sysfs interface for using PWM + channels. + +What: /sys/class/pwm/pwmchipN/ +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + A /sys/class/pwm/pwmchipN directory is created for each + probed PWM controller/chip where N is the base of the + PWM chip. + +What: /sys/class/pwm/pwmchipN/npwm +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + The number of PWM channels supported by the PWM chip. + +What: /sys/class/pwm/pwmchipN/export +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Exports a PWM channel from the PWM chip for sysfs control. + Value is between 0 and /sys/class/pwm/pwmchipN/npwm - 1. + +What: /sys/class/pwm/pwmchipN/unexport +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Unexports a PWM channel. + +What: /sys/class/pwm/pwmchipN/pwmX +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + A /sys/class/pwm/pwmchipN/pwmX directory is created for + each exported PWM channel where X is the exported PWM + channel number. + +What: /sys/class/pwm/pwmchipN/pwmX/period +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Sets the PWM signal period in nanoseconds. + +What: /sys/class/pwm/pwmchipN/pwmX/duty_cycle +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Sets the PWM signal duty cycle in nanoseconds. + +What: /sys/class/pwm/pwmchipN/pwmX/polarity +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Sets the output polarity of the PWM signal to "normal" or + "inversed". + +What: /sys/class/pwm/pwmchipN/pwmX/enable +Date: May 2013 +KernelVersion: 3.11 +Contact: H Hartley Sweeten <hsweeten@visionengravers.com> +Description: + Enable/disable the PWM signal. + 0 is disabled + 1 is enabled diff --git a/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc b/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc index 25b1e751b777..5977e2875325 100644 --- a/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc +++ b/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc @@ -36,3 +36,22 @@ Description: Refer to [ECMA-368] section 10.3.1.1 for the value to use. + +What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_dnts +Date: June 2013 +KernelVersion: 3.11 +Contact: Thomas Pugliese <thomas.pugliese@gmail.com> +Description: + The device notification time slot (DNTS) count and inverval in + milliseconds that the WUSB host should use. This controls how + often the devices will have the opportunity to send + notifications to the host. + +What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_retry_count +Date: June 2013 +KernelVersion: 3.11 +Contact: Thomas Pugliese <thomas.pugliese@gmail.com> +Description: + The number of retries that the WUSB host should attempt + before reporting an error for a bus transaction. The range of + valid values is [0..15], where 0 indicates infinite retries. diff --git a/Documentation/ABI/testing/sysfs-devices-edac b/Documentation/ABI/testing/sysfs-devices-edac index 30ee78aaed75..6568e0010e1a 100644 --- a/Documentation/ABI/testing/sysfs-devices-edac +++ b/Documentation/ABI/testing/sysfs-devices-edac @@ -77,7 +77,7 @@ Description: Read/Write attribute file that controls memory scrubbing. What: /sys/devices/system/edac/mc/mc*/max_location Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file displays the information about the last available memory slot in this memory controller. It is used by @@ -85,7 +85,7 @@ Description: This attribute file displays the information about the last What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/size Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file will display the size of dimm or rank. For dimm*/size, this is the size, in MB of the DIMM memory @@ -96,14 +96,14 @@ Description: This attribute file will display the size of dimm or rank. What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_dev_type Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file will display what type of DRAM device is being utilized on this DIMM (x1, x2, x4, x8, ...). What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_edac_mode Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file will display what type of Error detection and correction is being utilized. For example: S4ECD4ED would @@ -111,7 +111,7 @@ Description: This attribute file will display what type of Error detection What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_label Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This control file allows this DIMM to have a label assigned to it. With this label in the module, when errors occur @@ -126,14 +126,14 @@ Description: This control file allows this DIMM to have a label assigned What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_location Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file will display the location (csrow/channel, branch/channel/slot or channel/slot) of the dimm or rank. What: /sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_mem_type Date: April 2012 -Contact: Mauro Carvalho Chehab <mchehab@redhat.com> +Contact: Mauro Carvalho Chehab <m.chehab@samsung.com> linux-edac@vger.kernel.org Description: This attribute file will display what type of memory is currently on this csrow. Normally, either buffered or diff --git a/Documentation/ABI/testing/sysfs-devices-online b/Documentation/ABI/testing/sysfs-devices-online new file mode 100644 index 000000000000..f990026c0740 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-online @@ -0,0 +1,20 @@ +What: /sys/devices/.../online +Date: April 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../online attribute is only present for + devices whose bus types provide .online() and .offline() + callbacks. The number read from it (0 or 1) reflects the value + of the device's 'offline' field. If that number is 1 and '0' + (or 'n', or 'N') is written to this file, the device bus type's + .offline() callback is executed for the device and (if + successful) its 'offline' field is updated accordingly. In + turn, if that number is 0 and '1' (or 'y', or 'Y') is written to + this file, the device bus type's .online() callback is executed + for the device and (if successful) its 'offline' field is + updated as appropriate. + + After a successful execution of the bus type's .offline() + callback the device cannot be used for any purpose until either + it is removed (i.e. device_del() is called for it), or its bus + type's .online() is exeucted successfully. diff --git a/Documentation/ABI/testing/sysfs-devices-sun b/Documentation/ABI/testing/sysfs-devices-sun index 86be9848a77e..625ce4b63758 100644 --- a/Documentation/ABI/testing/sysfs-devices-sun +++ b/Documentation/ABI/testing/sysfs-devices-sun @@ -1,4 +1,4 @@ -Whatt: /sys/devices/.../sun +What: /sys/devices/.../sun Date: October 2012 Contact: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Description: diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 2447698aed41..468e4d48f884 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -144,6 +144,21 @@ Description: Discover and change clock speed of CPUs to learn how to control the knobs. +What: /sys/devices/system/cpu/cpu#/cpufreq/freqdomain_cpus +Date: June 2013 +Contact: cpufreq@vger.kernel.org +Description: Discover CPUs in the same CPU frequency coordination domain + + freqdomain_cpus is the list of CPUs (online+offline) that share + the same clock/freq domain (possibly at the hardware level). + That information may be hidden from the cpufreq core and the + value of related_cpus may be different from freqdomain_cpus. This + attribute is useful for user space DVFS controllers to get better + power/performance results for platforms using acpi-cpufreq. + + This file is only present if the acpi-cpufreq driver is in use. + + What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1} Date: August 2008 KernelVersion: 2.6.27 diff --git a/Documentation/ABI/testing/sysfs-driver-hid-wiimote b/Documentation/ABI/testing/sysfs-driver-hid-wiimote index 3d98009f447a..ed5dd567d397 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-wiimote +++ b/Documentation/ABI/testing/sysfs-driver-hid-wiimote @@ -12,7 +12,7 @@ Description: Make it possible to set/get current led state. Reading from it What: /sys/bus/hid/drivers/wiimote/<dev>/extension Date: August 2011 KernelVersion: 3.2 -Contact: David Herrmann <dh.herrmann@googlemail.com> +Contact: David Herrmann <dh.herrmann@gmail.com> Description: This file contains the currently connected and initialized extensions. It can be one of: none, motionp, nunchuck, classic, motionp+nunchuck, motionp+classic @@ -20,3 +20,40 @@ Description: This file contains the currently connected and initialized the official Nintendo Nunchuck extension and classic is the Nintendo Classic Controller extension. The motionp extension can be combined with the other two. + Starting with kernel-version 3.11 Motion Plus hotplugging is + supported and if detected, it's no longer reported as static + extension. You will get uevent notifications for the motion-plus + device then. + +What: /sys/bus/hid/drivers/wiimote/<dev>/devtype +Date: May 2013 +KernelVersion: 3.11 +Contact: David Herrmann <dh.herrmann@gmail.com> +Description: While a device is initialized by the wiimote driver, we perform + a device detection and signal a "change" uevent after it is + done. This file shows the detected device type. "pending" means + that the detection is still ongoing, "unknown" means, that the + device couldn't be detected or loaded. "generic" means, that the + device couldn't be detected but supports basic Wii Remote + features and can be used. + Other strings for each device-type are available and may be + added if new device-specific detections are added. + Currently supported are: + gen10: First Wii Remote generation + gen20: Second Wii Remote Plus generation (builtin MP) + balanceboard: Wii Balance Board + +What: /sys/bus/hid/drivers/wiimote/<dev>/bboard_calib +Date: May 2013 +KernelVersion: 3.11 +Contact: David Herrmann <dh.herrmann@gmail.com> +Description: This attribute is only provided if the device was detected as a + balance board. It provides a single line with 3 calibration + values for all 4 sensors. The values are separated by colons and + are each 2 bytes long (encoded as 4 digit hexadecimal value). + First, 0kg values for all 4 sensors are written, followed by the + 17kg values for all 4 sensors and last the 34kg values for all 4 + sensors. + Calibration data is already applied by the kernel to all input + values but may be used by user-space to perform other + transformations. diff --git a/Documentation/ABI/testing/sysfs-driver-intel-rapid-start b/Documentation/ABI/testing/sysfs-driver-intel-rapid-start new file mode 100644 index 000000000000..5a7d2e217d40 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-intel-rapid-start @@ -0,0 +1,21 @@ +What: /sys/bus/acpi/intel-rapid-start/wakeup_events +Date: July 2, 2013 +KernelVersion: 3.11 +Contact: Matthew Garrett <mjg59@srcf.ucam.org> +Description: An integer representing a set of wakeup events as follows: + 1: Wake to enter hibernation when the wakeup timer expires + 2: Wake to enter hibernation when the battery reaches a + critical level + + These values are ORed together. For example, a value of 3 + indicates that the system will wake to enter hibernation when + either the wakeup timer expires or the battery reaches a + critical level. + +What: /sys/bus/acpi/intel-rapid-start/wakeup_time +Date: July 2, 2013 +KernelVersion: 3.11 +Contact: Matthew Garrett <mjg59@srcf.ucam.org> +Description: An integer representing the length of time the system will + remain asleep before waking up to enter hibernation. + This value is in minutes. diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback new file mode 100644 index 000000000000..8bb43b66eb55 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -0,0 +1,17 @@ +What: /sys/module/xen_blkback/parameters/max_buffer_pages +Date: March 2013 +KernelVersion: 3.11 +Contact: Roger Pau Monné <roger.pau@citrix.com> +Description: + Maximum number of free pages to keep in each block + backend buffer. + +What: /sys/module/xen_blkback/parameters/max_persistent_grants +Date: March 2013 +KernelVersion: 3.11 +Contact: Roger Pau Monné <roger.pau@citrix.com> +Description: + Maximum number of grants to map persistently in + blkback. If the frontend tries to use more than + max_persistent_grants, the LRU kicks in and starts + removing 5% of max_persistent_grants every 100ms. diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkfront b/Documentation/ABI/testing/sysfs-driver-xen-blkfront new file mode 100644 index 000000000000..c0a6cb7eb314 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkfront @@ -0,0 +1,10 @@ +What: /sys/module/xen_blkfront/parameters/max +Date: June 2013 +KernelVersion: 3.11 +Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> +Description: + Maximum number of segments that the frontend will negotiate + with the backend for indirect descriptors. The default value + is 32 - higher value means more potential throughput but more + memory usage. The backend picks the minimum of the frontend + and its default backend value. diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi index ce9bee98b43b..b4436cca97a8 100644 --- a/Documentation/ABI/testing/sysfs-firmware-acpi +++ b/Documentation/ABI/testing/sysfs-firmware-acpi @@ -44,6 +44,16 @@ Description: or 0 (unset). Attempts to write any other values to it will cause -EINVAL to be returned. +What: /sys/firmware/acpi/hotplug/force_remove +Date: May 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The number in this file (0 or 1) determines whether (1) or not + (0) the ACPI subsystem will allow devices to be hot-removed even + if they cannot be put offline gracefully (from the kernel's + viewpoint). That number can be changed by writing a boolean + value to this file. + What: /sys/firmware/acpi/interrupts/ Date: February 2008 Contact: Len Brown <lenb@kernel.org> diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs new file mode 100644 index 000000000000..31942efcaf0e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -0,0 +1,26 @@ +What: /sys/fs/f2fs/<disk>/gc_max_sleep_time +Date: July 2013 +Contact: "Namjae Jeon" <namjae.jeon@samsung.com> +Description: + Controls the maximun sleep time for gc_thread. Time + is in milliseconds. + +What: /sys/fs/f2fs/<disk>/gc_min_sleep_time +Date: July 2013 +Contact: "Namjae Jeon" <namjae.jeon@samsung.com> +Description: + Controls the minimum sleep time for gc_thread. Time + is in milliseconds. + +What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time +Date: July 2013 +Contact: "Namjae Jeon" <namjae.jeon@samsung.com> +Description: + Controls the default sleep time for gc_thread. Time + is in milliseconds. + +What: /sys/fs/f2fs/<disk>/gc_idle +Date: July 2013 +Contact: "Namjae Jeon" <namjae.jeon@samsung.com> +Description: + Controls the victim selection policy for garbage collection. |