Digital-tv card drivers and API discussion

Teemu.Parkkinen_at_patria.fi
Date: 04/13/04

  • Next message: Eivind Eklund: "Re: Digital-tv card drivers and API discussion" 
    To: freebsd-arch@freebsd.org
Date: Tue, 13 Apr 2004 12:44:35 +0300

    Hi all,

    I am about to write a digital tv-driver for my dvb-c -card. Because FreeBSD
    does not yet have
    any dvb-devices and I don't have any prior driver development experience, I
    have a couple
    of questions for you.

    1) Should we use Linux-DVB API as a reference, or should we consider some
    changes to it?
    The API seems to be constantly changing and improving. Version 3 is
    available here:
    http://www.linuxtv.org/download/dvb/linux-dvb-api-1.0.0.pdf
    but they are currently working on version 4. In my opinion, the API should
    be minimal, but
    complete, so there is no need to constantly add new features to it.

    2) As linux kernel is GPL-licensed, I cannot just port the linux driver to
    FreeBSD, right?
    In other words, we have to write the driver from scratch. In this case we
    don't have to stick
    with the Linux DVB-API and therefore I suggest that we give think the api
    through before
    deciding how we implement it (do we follow linux api or not).

    3) Do you have any pointers to good books or other documentation on how to
    write device
    drivers for UNIX (BSD)? I already have read those from FreeBSD
    documentation, but a decent
    book would be handy.

    - Teemu Parkkinen

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  • Next message: Eivind Eklund: "Re: Digital-tv card drivers and API discussion"

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