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    SubjectRe: GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19]

    On Dec 14 2006 12:42, Alan wrote:
    >On Thu, 14 Dec 2006 12:31:16 +0100
    >Hans-Jürgen Koch <hjk@linutronix.de> wrote:
    >> You think it's easier for a manufacturer of industrial IO cards to
    >> debug a (large) kernel module?
    >
    >You think its any easier to debug because the code now runs in ring 3 but
    >accessing I/O space.

    A NULL fault won't oops the system, but of course the wrong inb/inw/inl() or
    outb* can fubar the machine.


    >> > uio also doesn't handle hotplug, pci and other "small" matters.
    >>
    >> uio is supposed to be a very thin layer. Hotplug and PCI are already
    >> handled by other subsystems.
    >
    >And if you have a PCI or a hotplug card ? How many industrial I/O cards
    >are still ISA btw ?

    Something called PC104 out there.


    -`J'
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