diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-usb | 7 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-extcon | 22 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-regulator | 21 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 11 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-wacom | 13 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-ptp | 6 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-tty | 9 |
7 files changed, 77 insertions, 12 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index 5f75f8f7df34..b6fbe514a869 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -220,3 +220,10 @@ Description: If the device doesn't support LTM, the file will read "no". The file will be present for all speeds of USB devices, and will always read "no" for USB 1.1 and USB 2.0 devices. + +What: /sys/bus/usb/devices/.../(hub interface)/portX +Date: August 2012 +Contact: Lan Tianyu <tianyu.lan@intel.com> +Description: + The /sys/bus/usb/devices/.../(hub interface)/portX + is usb port device's sysfs directory. diff --git a/Documentation/ABI/testing/sysfs-class-extcon b/Documentation/ABI/testing/sysfs-class-extcon index 20ab361bd8c6..57a726232912 100644 --- a/Documentation/ABI/testing/sysfs-class-extcon +++ b/Documentation/ABI/testing/sysfs-class-extcon @@ -13,7 +13,7 @@ Description: accessory cables have such capability. For example, the 30-pin port of Nuri board (/arch/arm/mach-exynos) may have both HDMI and Charger attached, or analog audio, - video, and USB cables attached simulteneously. + video, and USB cables attached simultaneously. If there are cables mutually exclusive with each other, such binary relations may be expressed with extcon_dev's @@ -35,7 +35,7 @@ Description: The /sys/class/extcon/.../state shows and stores the cable attach/detach information of the corresponding extcon object. If the extcon object has an optional callback "show_state" - defined, the showing function is overriden with the optional + defined, the showing function is overridden with the optional callback. If the default callback for showing function is used, the @@ -46,19 +46,19 @@ Description: TA=1 EAR_JACK=0 # - In this example, the extcon device have USB_OTG and TA + In this example, the extcon device has USB_OTG and TA cables attached and HDMI and EAR_JACK cables detached. In order to update the state of an extcon device, enter a hex - state number starting with 0x. - echo 0xHEX > state + state number starting with 0x: + # echo 0xHEX > state - This updates the whole state of the extcon dev. + This updates the whole state of the extcon device. Inputs of all the methods are required to meet the - mutually_exclusive contidions if they exist. + mutually_exclusive conditions if they exist. It is recommended to use this "global" state interface if - you need to enter the value atomically. The later state + you need to set the value atomically. The later state interface associated with each cable cannot update multiple cable states of an extcon device simultaneously. @@ -73,7 +73,7 @@ What: /sys/class/extcon/.../cable.x/state Date: February 2012 Contact: MyungJoo Ham <myungjoo.ham@samsung.com> Description: - The /sys/class/extcon/.../cable.x/name shows and stores the + The /sys/class/extcon/.../cable.x/state shows and stores the state of cable "x" (integer between 0 and 31) of an extcon device. The state value is either 0 (detached) or 1 (attached). @@ -83,8 +83,8 @@ Date: December 2011 Contact: MyungJoo Ham <myungjoo.ham@samsung.com> Description: Shows the relations of mutually exclusiveness. For example, - if the mutually_exclusive array of extcon_dev is - {0x3, 0x5, 0xC, 0x0}, the, the output is: + if the mutually_exclusive array of extcon device is + {0x3, 0x5, 0xC, 0x0}, then the output is: # ls mutually_exclusive/ 0x3 0x5 diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator index e091fa873792..bc578bc60628 100644 --- a/Documentation/ABI/testing/sysfs-class-regulator +++ b/Documentation/ABI/testing/sysfs-class-regulator @@ -349,3 +349,24 @@ Description: This will be one of the same strings reported by the "state" attribute. + +What: /sys/class/regulator/.../bypass +Date: September 2012 +KernelVersion: 3.7 +Contact: Mark Brown <broonie@opensource.wolfsonmicro.com> +Description: + Some regulator directories will contain a field called + bypass. This indicates if the device is in bypass mode. + + This will be one of the following strings: + + 'enabled' + 'disabled' + 'unknown' + + 'enabled' means the regulator is in bypass mode. + + 'disabled' means that the regulator is regulating. + + 'unknown' means software cannot determine the state, or + the reported state is invalid. diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 5dab36448b44..6943133afcb8 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -176,3 +176,14 @@ Description: Disable L3 cache indices All AMD processors with L3 caches provide this functionality. For details, see BKDGs at http://developer.amd.com/documentation/guides/Pages/default.aspx + + +What: /sys/devices/system/cpu/cpufreq/boost +Date: August 2012 +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> +Description: Processor frequency boosting control + + This switch controls the boost setting for the whole system. + Boosting allows the CPU and the firmware to run at a frequency + beyound it's nominal limit. + More details can be found in Documentation/cpu-freq/boost.txt diff --git a/Documentation/ABI/testing/sysfs-driver-wacom b/Documentation/ABI/testing/sysfs-driver-wacom index 8d55a83d6921..7fc781048b79 100644 --- a/Documentation/ABI/testing/sysfs-driver-wacom +++ b/Documentation/ABI/testing/sysfs-driver-wacom @@ -1,3 +1,16 @@ +WWhat: /sys/class/hidraw/hidraw*/device/oled*_img +Date: June 2012 +Contact: linux-bluetooth@vger.kernel.org +Description: + The /sys/class/hidraw/hidraw*/device/oled*_img files control + OLED mocro displays on Intuos4 Wireless tablet. Accepted image + has to contain 256 bytes (64x32 px 1 bit colour). The format + is the same as PBM image 62x32px without header (64 bits per + horizontal line, 32 lines). An example of setting OLED No. 0: + dd bs=256 count=1 if=img_file of=[path to oled0_img]/oled0_img + The attribute is read only and no local copy of the image is + stored. + What: /sys/class/hidraw/hidraw*/device/speed Date: April 2010 Kernel Version: 2.6.35 diff --git a/Documentation/ABI/testing/sysfs-ptp b/Documentation/ABI/testing/sysfs-ptp index d40d2b550502..05aeedf17794 100644 --- a/Documentation/ABI/testing/sysfs-ptp +++ b/Documentation/ABI/testing/sysfs-ptp @@ -19,7 +19,11 @@ Date: September 2010 Contact: Richard Cochran <richardcochran@gmail.com> Description: This file contains the name of the PTP hardware clock - as a human readable string. + as a human readable string. The purpose of this + attribute is to provide the user with a "friendly + name" and to help distinguish PHY based devices from + MAC based ones. The string does not necessarily have + to be any kind of unique id. What: /sys/class/ptp/ptpN/max_adjustment Date: September 2010 diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty index b138b663bf54..0c430150d929 100644 --- a/Documentation/ABI/testing/sysfs-tty +++ b/Documentation/ABI/testing/sysfs-tty @@ -17,3 +17,12 @@ Description: device, like 'tty1'. The file supports poll() to detect virtual console switches. + +What: /sys/class/tty/ttyS0/uartclk +Date: Sep 2012 +Contact: Tomas Hlavacek <tmshlvck@gmail.com> +Description: + Shows the current uartclk value associated with the + UART port in serial_core, that is bound to TTY like ttyS0. + uartclk = 16 * baud_base + |