sound driver.. - Linux

This is a discussion on sound driver.. - Linux ; hi ! i'm working on linux on PPC board. i want to develop a custom sound driver to use PWM output. but i would like this sound driver "standard", meaning KDE or other HMI can use it.. i have the ...

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Thread: sound driver..

  1. sound driver..

    hi !

    i'm working on linux on PPC board.

    i want to develop a custom sound driver to use PWM output.

    but i would like this sound driver "standard", meaning KDE or other HMI can
    use it..

    i have the same need for video driver. i use SSD1906 video controler on PPC
    local bus, but i don't know how to make this video driver to get shell,
    boot ect use it..

    where i can found information about theses drivers ?

    thank a lot.


  2. Re: sound driver..

    Eric BOUXIROT schrieb:
    >
    > i'm working on linux on PPC board.
    >
    > i want to develop a custom sound driver to use PWM output.
    >
    > but i would like this sound driver "standard", meaning KDE or other HMI
    > can use it..
    >

    Kernel sound drivers are all from the ALSA project nowadays. Look into the
    ALSA PC speaker driver, it is one of the simplest. More sophisticated sound
    devices require you to use DMA. Read a book about Linux kernel driver
    development before trying something with that. Note that the PPC
    architecture and especially embedded boards are not in the focus of too
    much people, so only PPC/embedded gurus amongst the kernel developers may
    help you in some cases.


    > i have the same need for video driver. i use SSD1906 video controler on
    > PPC local bus, but i don't know how to make this video driver to get
    > shell, boot ect use it..
    >

    There has to be a framebuffer driver for the board you use to get this
    working. Which board/development kit do you use?

    Kind regards

    Jan


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