mirror of https://gitee.com/openkylin/linux.git
327 lines
11 KiB
Plaintext
327 lines
11 KiB
Plaintext
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
|
|
=================== =============================
|
|
|
|
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:
|
|
|
|
============== =============================================
|
|
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 picutre,
|
|
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 caputre
|
|
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
|