Re: porting a webcam

From: Bernd Walter (ticso_at_cicely12.cicely.de)
Date: 08/08/03

  • Next message: John Baldwin: "Re: How to get a device_t" 
    Date: Fri, 8 Aug 2003 18:06:07 +0200
To: Paulo Roberto <nirv199@yahoo.com>

    On Fri, Aug 08, 2003 at 07:56:26AM -0700, Paulo Roberto wrote:
    > Hello,
    >
    > I am about to code my first kmod. I am trying to port an usb camera to
    > FreeBSD, and since I am new at system development, I hope you don't
    > mind helping me out. If this is not the correct list I should post,
    > please point me what list I should post to.
    >
    > I got a few questions:
    >
    > * Does the 5 series differs too much to from the 4-stable to write a
    > device driver? I am planning to code for 4.8 (the one I am using now)
    > and I wonder how hard would it be to port it later to the 5 series.
    >
    > * I am reading the developers handbook, is there another good reference
    > recommended? Any good point of reference for usb/camera
    > protocols/device drivers?
    >
    > * You guys think it is too difficult and I should just give up due to
    > my lack of experience? And if I manage to code properly, is it too
    > bureaucratic to get it into the FreeBSD kernel?

    I wouldn't write a kernel driver for a camera and use ugen(4) instead.
    The state of ugen is similar in 4.x and 5.x so you don't have to worry
    about a special version.
    The most important part is getting informations about the protocol
    used by your camera. 

    -- 
B.Walter                   BWCT                http://www.bwct.de
ticso@bwct.de                                  info@bwct.de
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  • Next message: John Baldwin: "Re: How to get a device_t"

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