diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-led | 14 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-remoteproc | 50 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-ibm-rtl | 4 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-kernel-slab | 2 |
4 files changed, 64 insertions, 6 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led index 86ace287d48b..491cdeedc195 100644 --- a/Documentation/ABI/testing/sysfs-class-led +++ b/Documentation/ABI/testing/sysfs-class-led @@ -4,16 +4,24 @@ KernelVersion: 2.6.17 Contact: Richard Purdie <rpurdie@rpsys.net> Description: Set the brightness of the LED. Most LEDs don't - have hardware brightness support so will just be turned on for + have hardware brightness support, so will just be turned on for non-zero brightness settings. The value is between 0 and /sys/class/leds/<led>/max_brightness. + Writing 0 to this file clears active trigger. + + Writing non-zero to this file while trigger is active changes the + top brightness trigger is going to use. + What: /sys/class/leds/<led>/max_brightness Date: March 2006 KernelVersion: 2.6.17 Contact: Richard Purdie <rpurdie@rpsys.net> Description: - Maximum brightness level for this led, default is 255 (LED_FULL). + Maximum brightness level for this LED, default is 255 (LED_FULL). + + If the LED does not support different brightness levels, this + should be 1. What: /sys/class/leds/<led>/trigger Date: March 2006 @@ -21,7 +29,7 @@ KernelVersion: 2.6.17 Contact: Richard Purdie <rpurdie@rpsys.net> Description: Set the trigger for this LED. A trigger is a kernel based source - of led events. + of LED events. You can change triggers in a similar manner to the way an IO scheduler is chosen. Trigger specific parameters can appear in /sys/class/leds/<led> once a given trigger is selected. For diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc new file mode 100644 index 000000000000..d188afebc8ba --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-remoteproc @@ -0,0 +1,50 @@ +What: /sys/class/remoteproc/.../firmware +Date: October 2016 +Contact: Matt Redfearn <matt.redfearn@imgtec.com> +Description: Remote processor firmware + + Reports the name of the firmware currently loaded to the + remote processor. + + To change the running firmware, ensure the remote processor is + stopped (using /sys/class/remoteproc/.../state) and write a new filename. + +What: /sys/class/remoteproc/.../state +Date: October 2016 +Contact: Matt Redfearn <matt.redfearn@imgtec.com> +Description: Remote processor state + + Reports the state of the remote processor, which will be one of: + + "offline" + "suspended" + "running" + "crashed" + "invalid" + + "offline" means the remote processor is powered off. + + "suspended" means that the remote processor is suspended and + must be woken to receive messages. + + "running" is the normal state of an available remote processor + + "crashed" indicates that a problem/crash has been detected on + the remote processor. + + "invalid" is returned if the remote processor is in an + unknown state. + + Writing this file controls the state of the remote processor. + The following states can be written: + + "start" + "stop" + + Writing "start" will attempt to start the processor running the + firmware indicated by, or written to, + /sys/class/remoteproc/.../firmware. The remote processor should + transition to "running" state. + + Writing "stop" will attempt to halt the remote processor and + return it to the "offline" state. diff --git a/Documentation/ABI/testing/sysfs-devices-system-ibm-rtl b/Documentation/ABI/testing/sysfs-devices-system-ibm-rtl index b82deeaec314..470def06ab0a 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-ibm-rtl +++ b/Documentation/ABI/testing/sysfs-devices-system-ibm-rtl @@ -1,4 +1,4 @@ -What: state +What: /sys/devices/system/ibm_rtl/state Date: Sep 2010 KernelVersion: 2.6.37 Contact: Vernon Mauery <vernux@us.ibm.com> @@ -10,7 +10,7 @@ Description: The state file allows a means by which to change in and Users: The ibm-prtm userspace daemon uses this interface. -What: version +What: /sys/devices/system/ibm_rtl/version Date: Sep 2010 KernelVersion: 2.6.37 Contact: Vernon Mauery <vernux@us.ibm.com> diff --git a/Documentation/ABI/testing/sysfs-kernel-slab b/Documentation/ABI/testing/sysfs-kernel-slab index 91bd6ca5440f..2cc0a72b64be 100644 --- a/Documentation/ABI/testing/sysfs-kernel-slab +++ b/Documentation/ABI/testing/sysfs-kernel-slab @@ -347,7 +347,7 @@ Description: because of fragmentation, SLUB will retry with the minimum order possible depending on its characteristics. When debug_guardpage_minorder=N (N > 0) parameter is specified - (see Documentation/kernel-parameters.txt), the minimum possible + (see Documentation/admin-guide/kernel-parameters.rst), the minimum possible order is used and this sysfs entry can not be used to change the order at run time. |
