最終更新:2017-04-04 (火) 08:10:10 (2550d)
v4l2_capability
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Describes V4L2 device caps returned by VIDIOC_QUERYCAP
/** * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP * * @driver: name of the driver module (e.g. "bttv") * @card: name of the card (e.g. "Hauppauge WinTV") * @bus_info: name of the bus (e.g. "PCI:" + pci_name(pci_dev) ) * @version: KERNEL_VERSION * @capabilities: capabilities of the physical device as a whole * @device_caps: capabilities accessed via this particular device (node) * @reserved: reserved fields for future extensions */ struct v4l2_capability { __u8 driver[16]; __u8 card[32]; __u8 bus_info[32]; __u32 version; __u32 capabilities; __u32 device_caps; __u32 reserved[3]; };
v4l2-ctl
-D, --info show driver info [VIDIOC_QUERYCAP]
Driver Info (not using libv4l2): Driver name : uvcvideo Card type : Integrated Camera Bus info : usb-0000:00:14.0-3 Driver version: 4.4.13 Capabilities : 0x84200001 Video Capture Streaming Extended Pix Format Device Capabilities Device Caps : 0x04200001 Video Capture Streaming Extended Pix Format