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    SubjectRe: [RFC] make PC Speaker driver work on x86-64
    Mikael Pettersson wrote:
    > I have a pair of Athlon64 machines that dual-boot 32-bit and
    > 64-bit kernels. One annoying difference between the kernels
    > is that the PC Speaker driver (CONFIG_INPUT_PCSPKR=y) only
    > works in the 32-bit kernels. In the 64-bit kernels it remains
    > inactive and doesn't even generate any boot-time initialisation
    > or error messages.
    > Today I debugged that issue, and found that the PC Speaker
    > driver's ->probe() routine doesn't even get called in the
    > 64-bit kernels. The reason for that is that the arch code
    > apparently has to explictly add a "pcspkr" platform device
    > in order for the driver core to call the ->probe() routine.
    > arch/i386/kernel/setup.c unconditionally adds a "pcspkr"
    > device, but the x86_64 kernel has no code at all related to
    > the PC Speaker.

    Wow, thanks.

    I was wondering why my PC speaker didn't seem to work. And here I was,
    blaming Fedora...


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      Last update: 2006-04-29 22:38    [W:0.030 / U:1.256 seconds]
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