diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-usb | 16 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg | 43 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-regulator | 55 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-gpio | 26 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-profiling | 13 |
5 files changed, 132 insertions, 21 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index 11a3c1682ce..df6c8a0159f 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -85,3 +85,19 @@ Description: 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/ diff --git a/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg b/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg new file mode 100644 index 00000000000..cb830df8777 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg @@ -0,0 +1,43 @@ +Where: /sys/bus/usb/.../powered +Date: August 2008 +Kernel Version: 2.6.26 +Contact: Harrison Metzger <harrisonmetz@gmail.com> +Description: Controls whether the device's display will powered. + A value of 0 is off and a non-zero value is on. + +Where: /sys/bus/usb/.../mode_msb +Where: /sys/bus/usb/.../mode_lsb +Date: August 2008 +Kernel Version: 2.6.26 +Contact: Harrison Metzger <harrisonmetz@gmail.com> +Description: Controls the devices display mode. + For a 6 character display the values are + MSB 0x06; LSB 0x3F, and + for an 8 character display the values are + MSB 0x08; LSB 0xFF. + +Where: /sys/bus/usb/.../textmode +Date: August 2008 +Kernel Version: 2.6.26 +Contact: Harrison Metzger <harrisonmetz@gmail.com> +Description: Controls the way the device interprets its text buffer. + raw: each character controls its segment manually + hex: each character is between 0-15 + ascii: each character is between '0'-'9' and 'A'-'F'. + +Where: /sys/bus/usb/.../text +Date: August 2008 +Kernel Version: 2.6.26 +Contact: Harrison Metzger <harrisonmetz@gmail.com> +Description: The text (or data) for the device to display + +Where: /sys/bus/usb/.../decimals +Date: August 2008 +Kernel Version: 2.6.26 +Contact: Harrison Metzger <harrisonmetz@gmail.com> +Description: Controls the decimal places on the device. + To set the nth decimal place, give this field + the value of 10 ** n. Assume this field has + the value k and has 1 or more decimal places set, + to set the mth place (where m is not already set), + change this fields value to k + 10 ** m.
\ No newline at end of file diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator index 79a4a75b2d2..3731f6f29bc 100644 --- a/Documentation/ABI/testing/sysfs-class-regulator +++ b/Documentation/ABI/testing/sysfs-class-regulator @@ -1,7 +1,7 @@ What: /sys/class/regulator/.../state Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called state. This holds the regulator output state. @@ -27,7 +27,7 @@ Description: What: /sys/class/regulator/.../type Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called type. This holds the regulator type. @@ -51,7 +51,7 @@ Description: What: /sys/class/regulator/.../microvolts Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called microvolts. This holds the regulator output voltage setting @@ -65,7 +65,7 @@ Description: What: /sys/class/regulator/.../microamps Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called microamps. This holds the regulator output current limit @@ -79,7 +79,7 @@ Description: What: /sys/class/regulator/.../opmode Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called opmode. This holds the regulator operating mode setting. @@ -102,7 +102,7 @@ Description: What: /sys/class/regulator/.../min_microvolts Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called min_microvolts. This holds the minimum safe working regulator @@ -116,7 +116,7 @@ Description: What: /sys/class/regulator/.../max_microvolts Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called max_microvolts. This holds the maximum safe working regulator @@ -130,7 +130,7 @@ Description: What: /sys/class/regulator/.../min_microamps Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called min_microamps. This holds the minimum safe working regulator @@ -145,7 +145,7 @@ Description: What: /sys/class/regulator/.../max_microamps Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called max_microamps. This holds the maximum safe working regulator @@ -157,10 +157,23 @@ Description: platform code. +What: /sys/class/regulator/.../name +Date: October 2008 +KernelVersion: 2.6.28 +Contact: Liam Girdwood <lrg@slimlogic.co.uk> +Description: + Each regulator directory will contain a field called + name. This holds a string identifying the regulator for + display purposes. + + NOTE: this will be empty if no suitable name is provided + by platform or regulator drivers. + + What: /sys/class/regulator/.../num_users Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called num_users. This holds the number of consumer devices that @@ -170,7 +183,7 @@ Description: What: /sys/class/regulator/.../requested_microamps Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called requested_microamps. This holds the total requested load @@ -181,7 +194,7 @@ Description: What: /sys/class/regulator/.../parent Date: April 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Some regulator directories will contain a link called parent. This points to the parent or supply regulator if one exists. @@ -189,7 +202,7 @@ Description: What: /sys/class/regulator/.../suspend_mem_microvolts Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_mem_microvolts. This holds the regulator output @@ -203,7 +216,7 @@ Description: What: /sys/class/regulator/.../suspend_disk_microvolts Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_disk_microvolts. This holds the regulator output @@ -217,7 +230,7 @@ Description: What: /sys/class/regulator/.../suspend_standby_microvolts Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_standby_microvolts. This holds the regulator output @@ -231,7 +244,7 @@ Description: What: /sys/class/regulator/.../suspend_mem_mode Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_mem_mode. This holds the regulator operating mode @@ -245,7 +258,7 @@ Description: What: /sys/class/regulator/.../suspend_disk_mode Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_disk_mode. This holds the regulator operating mode @@ -258,7 +271,7 @@ Description: What: /sys/class/regulator/.../suspend_standby_mode Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_standby_mode. This holds the regulator operating mode @@ -272,7 +285,7 @@ Description: What: /sys/class/regulator/.../suspend_mem_state Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_mem_state. This holds the regulator operating state @@ -287,7 +300,7 @@ Description: What: /sys/class/regulator/.../suspend_disk_state Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_disk_state. This holds the regulator operating state @@ -302,7 +315,7 @@ Description: What: /sys/class/regulator/.../suspend_standby_state Date: May 2008 KernelVersion: 2.6.26 -Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> +Contact: Liam Girdwood <lrg@slimlogic.co.uk> Description: Each regulator directory will contain a field called suspend_standby_state. This holds the regulator operating diff --git a/Documentation/ABI/testing/sysfs-gpio b/Documentation/ABI/testing/sysfs-gpio new file mode 100644 index 00000000000..8aab8092ad3 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-gpio @@ -0,0 +1,26 @@ +What: /sys/class/gpio/ +Date: July 2008 +KernelVersion: 2.6.27 +Contact: David Brownell <dbrownell@users.sourceforge.net> +Description: + + As a Kconfig option, individual GPIO signals may be accessed from + userspace. GPIOs are only made available to userspace by an explicit + "export" operation. If a given GPIO is not claimed for use by + kernel code, it may be exported by userspace (and unexported later). + Kernel code may export it for complete or partial access. + + GPIOs are identified as they are inside the kernel, using integers in + the range 0..INT_MAX. See Documentation/gpio.txt for more information. + + /sys/class/gpio + /export ... asks the kernel to export a GPIO to userspace + /unexport ... to return a GPIO to the kernel + /gpioN ... for each exported GPIO #N + /value ... always readable, writes fail for input GPIOs + /direction ... r/w as: in, out (default low); write: high, low + /gpiochipN ... for each gpiochip; #N is its first GPIO + /base ... (r/o) same as N + /label ... (r/o) descriptive, not necessarily unique + /ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1) + diff --git a/Documentation/ABI/testing/sysfs-profiling b/Documentation/ABI/testing/sysfs-profiling new file mode 100644 index 00000000000..b02d8b8c173 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-profiling @@ -0,0 +1,13 @@ +What: /sys/kernel/profile +Date: September 2008 +Contact: Dave Hansen <dave@linux.vnet.ibm.com> +Description: + /sys/kernel/profile is the runtime equivalent + of the boot-time profile= option. + + You can get the same effect running: + + echo 2 > /sys/kernel/profile + + as you would by issuing profile=2 on the boot + command line. |