kernel/linux.git/include/uapi/linux/usb/ch9.h, branch v4.9.254

usb: add helper to extract bits 12:11 of wMaxPacketSize

2017-12-20T09:07:16+00:00

commit 541b6fe63023f3059cf85d47ff2767a3e42a8e44 upstream. According to USB Specification 2.0 table 9-4, wMaxPacketSize is a bitfield. Endpoint's maxpacket is laid out in bits 10:0. For high-speed, high-bandwidth isochronous endpoints, bits 12:11 contain a multiplier to tell us how many transactions we want to try per uframe. This means that if we want an isochronous endpoint to issue 3 transfers of 1024 bytes per uframe, wMaxPacketSize should contain the value: 1024 | (2 << 11) or 5120 (0x1400). In order to make Host and Peripheral controller drivers' life easier, we're adding a helper which returns bits 12:11. Note that no care is made WRT to checking endpoint type and gadget's speed. That's left for drivers to handle. Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

USB: core: Add type-specific length check of BOS descriptors

2017-12-09T21:01:56+00:00

commit 81cf4a45360f70528f1f64ba018d61cb5767249a upstream. As most of BOS descriptors are longer in length than their header 'struct usb_dev_cap_header', comparing solely with it is not sufficient to avoid out-of-bounds access to BOS descriptors. This patch adds descriptor type specific length check in usb_get_bos_descriptor() to fix the issue. Signed-off-by: Masakazu Mokuno Signed-off-by: Greg Kroah-Hartman

USB: fix out-of-bounds in usb_set_configuration

2017-10-12T09:51:17+00:00

commit bd7a3fe770ebd8391d1c7d072ff88e9e76d063eb upstream. Andrey Konovalov reported a possible out-of-bounds problem for a USB interface association descriptor. He writes: It seems there's no proper size check of a USB_DT_INTERFACE_ASSOCIATION descriptor. It's only checked that the size is >= 2 in usb_parse_configuration(), so find_iad() might do out-of-bounds access to intf_assoc->bInterfaceCount. And he's right, we don't check for crazy descriptors of this type very well, so resolve this problem. Yet another issue found by syzkaller... Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Signed-off-by: Greg Kroah-Hartman

USB: PD: additional feature selectors

2016-04-18T19:33:15+00:00

This adds the feature selectors from Table 9-8 Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: PD: define specific requests

2016-04-18T19:33:15+00:00

This takes the definitions of requests from chapter 9.3.1 of the USB Power Delivery spec. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: add descriptors from USB Power Delivery spec

2016-04-18T19:33:15+00:00

Adding the descriptors of chapter 9.2 of the Power Delivery spec. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

usb: ch9: Fix SSP Device Cap wFunctionalitySupport type

2016-03-29T10:26:04+00:00

The wFunctionalitySupport field should be __le16. Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: add OTG status selector definition for HNP polling

2016-03-04T13:14:35+00:00

A host is required to use the GetStatus command, with wIndex set to the OTG status selector(F000H) to request the Host request flag from the peripheral. Acked-by: Peter Chen Signed-off-by: Li Jun Signed-off-by: Felipe Balbi

usb: ch9: Add size macro for SSP dev cap descriptor

2016-03-04T13:14:22+00:00

The SuperspeedPlus Device Capability Descriptor has a variable size depending on the number of sublink speed attributes. This patch adds a macro to calculate that size. The macro takes one argument, the Sublink Speed Attribute Count (SSAC) as reported by the descriptor in bmAttributes[4:0]. See USB 3.1 9.6.2.5, Table 9-19. Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: Add USB 3.1 Precision time measurement capability descriptor support

2016-02-15T01:03:23+00:00

USB 3.1 devices that support precision time measurement have an additional PTM cabaility descriptor as part of the full BOS descriptor Look for this descriptor while parsing the BOS descriptor, and store it in struct usb_hub_bos if it exists. Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman