diff options
Diffstat (limited to 'Documentation/ABI')
| -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 |
3 files changed, 73 insertions, 21 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator index 79a4a75b2d2c..3731f6f29bcb 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 000000000000..8aab8092ad35 --- /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 000000000000..b02d8b8c173a --- /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. |