diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget-uvc | 64 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-typec | 27 |
2 files changed, 91 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc index 4feb692c4c1d..b6720768d63d 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uvc +++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc @@ -342,6 +342,70 @@ Description: Specific uncompressed frame descriptors support ========================= ===================================== +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased +Date: Sept 2024 +KernelVersion: 5.15 +Description: Framebased format descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased/name +Date: Sept 2024 +KernelVersion: 5.15 +Description: Specific framebased format descriptors + + ================== ======================================= + bFormatIndex unique id for this format descriptor; + only defined after parent header is + linked into the streaming class; + read-only + bmaControls this format's data for bmaControls in + the streaming header + bmInterlaceFlags specifies interlace information, + read-only + bAspectRatioY the X dimension of the picture aspect + ratio, read-only + bAspectRatioX the Y dimension of the picture aspect + ratio, read-only + bDefaultFrameIndex optimum frame index for this stream + bBitsPerPixel number of bits per pixel used to + specify color in the decoded video + frame + guidFormat globally unique id used to identify + stream-encoding format + ================== ======================================= + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/framebased/name/name +Date: Sept 2024 +KernelVersion: 5.15 +Description: Specific framebased frame descriptors + + ========================= ===================================== + bFrameIndex unique id for this framedescriptor; + only defined after parent format is + linked into the streaming header; + read-only + dwFrameInterval indicates how frame interval can be + programmed; a number of values + separated by newline can be specified + dwDefaultFrameInterval the frame interval the device would + like to use as default + dwBytesPerLine Specifies the number of bytes per line + of video for packed fixed frame size + formats, allowing the receiver to + perform stride alignment of the video. + If the bVariableSize value (above) is + TRUE (1), or if the format does not + permit such alignment, this value shall + be set to zero (0). + dwMaxBitRate the maximum bit rate at the shortest + frame interval in bps + dwMinBitRate the minimum bit rate at the longest + frame interval in bps + wHeight height of decoded bitmap frame in px + wWidth width of decoded bitmam frame in px + bmCapabilities still image support, fixed frame-rate + support + ========================= ===================================== + What: /config/usb-gadget/gadget/functions/uvc.name/streaming/header Date: Dec 2014 KernelVersion: 4.0 diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec index 281b995beb05..38e101c17a00 100644 --- a/Documentation/ABI/testing/sysfs-class-typec +++ b/Documentation/ABI/testing/sysfs-class-typec @@ -149,6 +149,19 @@ Description: advertise to the partner. The currently used capabilities are in brackets. Selection happens by writing to the file. +What: /sys/class/typec/<port>/usb_capability +Date: November 2024 +Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> +Description: Lists the supported USB Modes. The default USB mode that is used + next time with the Enter_USB Message is in brackets. The default + mode can be changed by writing to the file when supported by the + driver. + + Valid values: + - usb2 (USB 2.0) + - usb3 (USB 3.2) + - usb4 (USB4) + USB Type-C partner devices (eg. /sys/class/typec/port0-partner/) What: /sys/class/typec/<port>-partner/accessory_mode @@ -220,6 +233,20 @@ Description: directory exists, it will have an attribute file for every VDO in Discover Identity command result. +What: /sys/class/typec/<port>-partner/usb_mode +Date: November 2024 +Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com> +Description: The USB Modes that the partner device supports. The active mode + is displayed in brackets. The active USB mode can be changed by + writing to this file when the port driver is able to send Data + Reset Message to the partner. That requires USB Power Delivery + contract between the partner and the port. + + Valid values: + - usb2 (USB 2.0) + - usb3 (USB 3.2) + - usb4 (USB4) + USB Type-C cable devices (eg. /sys/class/typec/port0-cable/) Note: Electronically Marked Cables will have a device also for one cable plug |