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Diffstat (limited to 'Documentation/ABI/testing')
3 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget index d548eaac230..3bf505e7227 100644 --- a/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget +++ b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget @@ -19,3 +19,16 @@ Description: Possible values are: 1 -> ignore the FUA flag 0 -> obey the FUA flag + +What: /sys/devices/platform/_UDC_/gadget/host_request +Date: December 2010 +Contact: Pavan Kondeti <pkondeti@...> +Description: + OTG 2.0 compliant host keeps polling OTG2.0 peripheral + for host role. Set host_request flag, which tells host + to give up the host role to peripheral. + + 1 -> host role is requested + 0 -> no effect (automatically cleared upon reset/disconnect) + + (_UDC_ is the name of the USB Device Controller driver) diff --git a/Documentation/ABI/testing/sysfs-devices-platform-ab5500-core-adc b/Documentation/ABI/testing/sysfs-devices-platform-ab5500-core-adc new file mode 100644 index 00000000000..fcfc0ed26fb --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-platform-ab5500-core-adc @@ -0,0 +1,20 @@ +What: /sys/devices/platform/ab5500-core.0/ab5500-adc.0/adc0volt +Date: Nov 2011 +KernelVersion: 3.0 +Contact: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com> +Description: The adc0volt attribute allows the userspace to read the + voltage of the device connected to the General Purpose + Analog to Digital Converter (GPADC) channel-0. Voltage + conversion from analog to digital happens only when this + attribute is read. GPADC block is present in AB5500 chip + and has input voltage range of 0-1.8 volt for GPADC Ch-0. + It provides result of the converted voltage in 10 bits. + Other GPADC channels attributes may appear in this path + later. For minimum and maximum input voltage range for + each channel please refer to the ST-Ericssons AB5500 + datasheet. An example usage of GPADC can be an ALS device + connected to the channel and user space adapts the + LCD backlight brightness based on ambient light value + read from the attribute. +Users: HAL. + diff --git a/Documentation/ABI/testing/sysfs-socinfo b/Documentation/ABI/testing/sysfs-socinfo new file mode 100644 index 00000000000..afd9da2fa76 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-socinfo @@ -0,0 +1,16 @@ +What: /sys/socinfo +Date: March 2011 +contact: Maxime Coquelin <maxime.coquelin-nonst@stericsson.com> +Description: + The /sys/socinfo directory contains information about the + System-on-Chip. It is only available if platform implements it. + This directory contains two kind of attributes : + - common attributes: + * machine: the name of the machine. + * family: the family name of the SoC + - SoC-specific attributes: The SoC vendor can declare attributes + to export some strings to user-space, like the serial-number for + example. + +Users: + User-space applications which needs these kind of attributes. |