summaryrefslogtreecommitdiff
path: root/Documentation/ABI
diff options
context:
space:
mode:
authorJonathan Cameron <jic23@kernel.org>2017-01-28 21:21:49 +0300
committerJonathan Cameron <jic23@kernel.org>2017-01-28 21:21:49 +0300
commit6db0f7ccc9f3876840e36c23ce357204cdc2d0ae (patch)
tree216ac355f5d7134a87acdc7678d308366250a303 /Documentation/ABI
parent1dc2af87877dd43e6874ef331974505df63378e7 (diff)
parent93fbe91b552194af970256ce72934745d01df435 (diff)
downloadlinux-6db0f7ccc9f3876840e36c23ce357204cdc2d0ae.tar.xz
Merge tag 'ib-mfd-iio-pwm-4.11' into test
Immutable branch between MFD, IIO and PWM due for the v4.11 merge window Pulled into IIO to allow follow up series of triggered capture for the STM32 ADCs.
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-timer-stm3229
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
new file mode 100644
index 000000000000..6534a60037ff
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
@@ -0,0 +1,29 @@
+What: /sys/bus/iio/devices/triggerX/master_mode_available
+KernelVersion: 4.11
+Contact: benjamin.gaignard@st.com
+Description:
+ Reading returns the list possible master modes which are:
+ - "reset" : The UG bit from the TIMx_EGR register is used as trigger output (TRGO).
+ - "enable" : The Counter Enable signal CNT_EN is used as trigger output.
+ - "update" : The update event is selected as trigger output.
+ For instance a master timer can then be used as a prescaler for a slave timer.
+ - "compare_pulse" : The trigger output send a positive pulse when the CC1IF flag is to be set.
+ - "OC1REF" : OC1REF signal is used as trigger output.
+ - "OC2REF" : OC2REF signal is used as trigger output.
+ - "OC3REF" : OC3REF signal is used as trigger output.
+ - "OC4REF" : OC4REF signal is used as trigger output.
+
+What: /sys/bus/iio/devices/triggerX/master_mode
+KernelVersion: 4.11
+Contact: benjamin.gaignard@st.com
+Description:
+ Reading returns the current master modes.
+ Writing set the master mode
+
+What: /sys/bus/iio/devices/triggerX/sampling_frequency
+KernelVersion: 4.11
+Contact: benjamin.gaignard@st.com
+Description:
+ Reading returns the current sampling frequency.
+ Writing an value different of 0 set and start sampling.
+ Writing 0 stop sampling.