Re: newbus ioport usage

From: M. Warner Losh (imp_at_bsdimp.com)
Date: 01/27/04

  • Next message: Nate Lawson: "Re: newbus ioport usage" 
    Date: Mon, 26 Jan 2004 18:17:20 -0700 (MST)
To: nate@root.org

    In message: <20040126165523.W30461@root.org>
                Nate Lawson <nate@root.org> writes:
    : Ok, I'm doing the set/alloc and it works. However, one weird thing. If I
    : allocate all ports at boot time, it succeeds. My driver goes through
    : multiple release/allocate cycles and it all works as expected. However if
    : I boot and attach to only one of the registers, subsequent attempts to
    : attach the second one fail. The resources are 2 IO ports, 0x101c and
    : 0x101d. Both are 1 byte.

    Deos devinfo -r show any cause for the problem? Maybe you aren't
    releasing them properly? Also, why not allocate them as a block of 2?

    Warner
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  • Next message: Nate Lawson: "Re: newbus ioport usage"

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