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| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget-uvc | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc new file mode 100644 index 000000000..feb3f2cc0 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc @@ -0,0 +1,327 @@ +What: /config/usb-gadget/gadget/functions/uvc.name +Date: Dec 2014 +KernelVersion: 4.0 +Description: UVC function directory + + =================== ============================= + streaming_maxburst 0..15 (ss only) + streaming_maxpacket 1..1023 (fs), 1..3072 (hs/ss) + streaming_interval 1..16 + function_name string [32] + =================== ============================= + +What: /config/usb-gadget/gadget/functions/uvc.name/control +Date: Dec 2014 +KernelVersion: 4.0 +Description: Control descriptors + + All attributes read only: + + ================ ============================= + bInterfaceNumber USB interface number for this + streaming interface + ================ ============================= + +What: /config/usb-gadget/gadget/functions/uvc.name/control/class +Date: Dec 2014 +KernelVersion: 4.0 +Description: Class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/class/ss +Date: Dec 2014 +KernelVersion: 4.0 +Description: Super speed control class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/class/fs +Date: Dec 2014 +KernelVersion: 4.0 +Description: Full speed control class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal +Date: Dec 2014 +KernelVersion: 4.0 +Description: Terminal descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/output +Date: Dec 2014 +KernelVersion: 4.0 +Description: Output terminal descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/output/default +Date: Dec 2014 +KernelVersion: 4.0 +Description: Default output terminal descriptors + + All attributes read only except bSourceID: + + ============== ============================================= + iTerminal index of string descriptor + bSourceID id of the terminal to which this terminal + is connected + bAssocTerminal id of the input terminal to which this output + terminal is associated + wTerminalType terminal type + bTerminalID a non-zero id of this terminal + ============== ============================================= + +What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/camera +Date: Dec 2014 +KernelVersion: 4.0 +Description: Camera terminal descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/camera/default +Date: Dec 2014 +KernelVersion: 4.0 +Description: Default camera terminal descriptors + + All attributes read only: + + ======================== ==================================== + bmControls bitmap specifying which controls are + supported for the video stream + wOcularFocalLength the value of Locular + wObjectiveFocalLengthMax the value of Lmin + wObjectiveFocalLengthMin the value of Lmax + iTerminal index of string descriptor + bAssocTerminal id of the output terminal to which + this terminal is connected + wTerminalType terminal type + bTerminalID a non-zero id of this terminal + ======================== ==================================== + +What: /config/usb-gadget/gadget/functions/uvc.name/control/processing +Date: Dec 2014 +KernelVersion: 4.0 +Description: Processing unit descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/processing/default +Date: Dec 2014 +KernelVersion: 4.0 +Description: Default processing unit descriptors + + All attributes read only: + + =============== ======================================== + iProcessing index of string descriptor + bmControls bitmap specifying which controls are + supported for the video stream + wMaxMultiplier maximum digital magnification x100 + bSourceID id of the terminal to which this unit is + connected + bUnitID a non-zero id of this unit + =============== ======================================== + +What: /config/usb-gadget/gadget/functions/uvc.name/control/header +Date: Dec 2014 +KernelVersion: 4.0 +Description: Control header descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/control/header/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific control header descriptors + +dwClockFrequency +bcdUVC +What: /config/usb-gadget/gadget/functions/uvc.name/streaming +Date: Dec 2014 +KernelVersion: 4.0 +Description: Streaming descriptors + + All attributes read only: + + ================ ============================= + bInterfaceNumber USB interface number for this + streaming interface + ================ ============================= + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/class +Date: Dec 2014 +KernelVersion: 4.0 +Description: Streaming class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/class/ss +Date: Dec 2014 +KernelVersion: 4.0 +Description: Super speed streaming class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/class/hs +Date: Dec 2014 +KernelVersion: 4.0 +Description: High speed streaming class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/class/fs +Date: Dec 2014 +KernelVersion: 4.0 +Description: Full speed streaming class descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/color_matching +Date: Dec 2014 +KernelVersion: 4.0 +Description: Color matching descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/color_matching/default +Date: Dec 2014 +KernelVersion: 4.0 +Description: Default color matching descriptors + + All attributes read only: + + ======================== ====================================== + bMatrixCoefficients matrix used to compute luma and + chroma values from the color primaries + bTransferCharacteristics optoelectronic transfer + characteristic of the source picture, + also called the gamma function + bColorPrimaries color primaries and the reference + white + ======================== ====================================== + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg +Date: Dec 2014 +KernelVersion: 4.0 +Description: MJPEG format descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific MJPEG format descriptors + + All attributes read only, + except bmaControls and bDefaultFrameIndex: + + =================== ===================================== + 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 + bmInterfaceFlags 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 + bmFlags characteristics of this format, + read-only + bDefaultFrameIndex optimum frame index for this stream + =================== ===================================== + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg/name/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific MJPEG 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 + dwMaxVideoFrameBufferSize the maximum number of bytes the + compressor will produce for a video + frame or still image + 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/uncompressed +Date: Dec 2014 +KernelVersion: 4.0 +Description: Uncompressed format descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/uncompressed/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific uncompressed 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 + bmInterfaceFlags 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/uncompressed/name/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific uncompressed 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 + dwMaxVideoFrameBufferSize the maximum number of bytes the + compressor will produce for a video + frame or still image + 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 +Description: Streaming header descriptors + +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/header/name +Date: Dec 2014 +KernelVersion: 4.0 +Description: Specific streaming header descriptors + + All attributes read only: + + ==================== ===================================== + bTriggerUsage how the host software will respond to + a hardware trigger interrupt event + bTriggerSupport flag specifying if hardware + triggering is supported + bStillCaptureMethod method of still image capture + supported + bTerminalLink id of the output terminal to which + the video endpoint of this interface + is connected + bmInfo capabilities of this video streaming + interface + ==================== ===================================== + +What: /sys/class/udc/udc.name/device/gadget/video4linux/video.name/function_name +Date: May 2018 +KernelVersion: 4.19 +Description: UVC configfs function instance name |