UsbConfigHostVideo

Host Video Kernel Config

Linux PSP

About this page

This page describes the Linux kernel config options for usb video class (UVC) on different kernel versions. Please refer the config option which matches with kernel version of release you are using.

Configuration

Linux v3.2

Start the Linux Kernel Configuration tool:

$ make CROSS_COMPILE=arm-arago-linux-gnueabi- ARCH=arm menuconfig

Select Device Drivers from the main menu.

    ...
    ...
    Power management options --->
    [ ] Networking support --->
    Device Drivers --->
    File systems --->
    Kernel hacking --->
    ...
    ...

Select Multimedia support as shown here

    ...
    ...
    <*> Multimedia support  --->
    Graphics support  --->
    <*> Sound card support  --->
    ...
    ...

Select Video For Linux and go to Video capture adapters as shown here

    ...
    ...
    [ ]   Media Controller API (EXPERIMENTAL)
    <*>   Video For Linux
    < >   DVB for Linux
    ...
    [*]   Video capture adapters  --->
    ... 

Go to V4L USB devices as shown here

    ...
    ...
    < >   SoC camera support  
    [*]   V4L USB devices  --->
    ... 
    ...

Select USB Video Class as shown here

    ...
    ...
    --- V4L USB devices
    <*>   USB Video Class (UVC)
    [*]     UVC input events device support
    < >   GSPCA based webcams  --->
    ...
    ...

This is all required for adding USB host video support in kernel.

Testing

Video application such as 'mplayer' or 'capture' is required for testing USB video.

Display need to be exported to a X server and then use below 'mplayer' command for testing.
$ mplayer tv:// -tv driver=v4l2:width=320:height=240

USB frames can be saved into a file using 'capture' utility available here (rename to capture.c)File:Capture.patch
$ ./capture -d /dev/video0 -i z1.yuv -w 320 -l 240