diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget | 45 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg | 56 |
2 files changed, 101 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget index 37559a06393b..95a36589a66b 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget +++ b/Documentation/ABI/testing/configfs-usb-gadget @@ -62,6 +62,40 @@ KernelVersion: 3.11 Description: This group contains functions available to this USB gadget. +What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n> +Date: May 2014 +KernelVersion: 3.16 +Description: + This group contains "Feature Descriptors" specific for one + gadget's USB interface or one interface group described + by an IAD. + + The attributes: + + compatible_id - 8-byte string for "Compatible ID" + sub_compatible_id - 8-byte string for "Sub Compatible ID" + +What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>/<property> +Date: May 2014 +KernelVersion: 3.16 +Description: + This group contains "Extended Property Descriptors" specific for one + gadget's USB interface or one interface group described + by an IAD. + + The attributes: + + type - value 1..7 for interpreting the data + 1: unicode string + 2: unicode string with environment variable + 3: binary + 4: little-endian 32-bit + 5: big-endian 32-bit + 6: unicode string with a symbolic link + 7: multiple unicode strings + data - blob of data to be interpreted depending on + type + What: /config/usb-gadget/gadget/strings Date: Jun 2013 KernelVersion: 3.11 @@ -79,3 +113,14 @@ Description: product - gadget's product description manufacturer - gadget's manufacturer description +What: /config/usb-gadget/gadget/os_desc +Date: May 2014 +KernelVersion: 3.16 +Description: + This group contains "OS String" extension handling attributes. + + use - flag turning "OS Desctiptors" support on/off + b_vendor_code - one-byte value used for custom per-device and + per-interface requests + qw_sign - an identifier to be reported as "OS String" + proper diff --git a/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg b/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg new file mode 100644 index 000000000000..151c59578db4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg @@ -0,0 +1,56 @@ +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req +Date: Feb 2014 +Contact: Li Jun <b47624@freescale.com> +Description: + Can be set and read. + Set a_bus_req(A-device bus request) input to be 1 if + the application running on the A-device wants to use the bus, + and to be 0 when the application no longer wants to use + the bus(or wants to work as peripheral). a_bus_req can also + be set to 1 by kernel in response to remote wakeup signaling + from the B-device, the A-device should decide to resume the bus. + + Valid values are "1" and "0". + + Reading: returns 1 if the application running on the A-device + is using the bus as host role, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop +Date: Feb 2014 +Contact: Li Jun <b47624@freescale.com> +Description: + Can be set and read + The a_bus_drop(A-device bus drop) input is 1 when the + application running on the A-device wants to power down + the bus, and is 0 otherwise, When a_bus_drop is 1, then + the a_bus_req shall be 0. + + Valid values are "1" and "0". + + Reading: returns 1 if the bus is off(vbus is turned off) by + A-device, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req +Date: Feb 2014 +Contact: Li Jun <b47624@freescale.com> +Description: + Can be set and read. + The b_bus_req(B-device bus request) input is 1 during the time + that the application running on the B-device wants to use the + bus as host, and is 0 when the application no longer wants to + work as host and decides to switch back to be peripheral. + + Valid values are "1" and "0". + + Reading: returns if the application running on the B device + is using the bus as host role, otherwise 0. + +What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_clr_err +Date: Feb 2014 +Contact: Li Jun <b47624@freescale.com> +Description: + Only can be set. + The a_clr_err(A-device Vbus error clear) input is used to clear + vbus error, then A-device will power down the bus. + + Valid value is "1" |