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    SubjectRe: [PATCH] x86: provide a DMI based port 0x80 I/O delay override.
    David P. Reed wrote:
    > Note that I can run the port 80 test once, the second time I get the
    > hard freeze. I didn't try writing to port 70 from userspace - that
    > one's dangerous, but the reading of it was included for a timing typical
    > of a chipset supported device. These are all pretty consistent.
    > I find the "read" timing from 0x80 verrrrry interesting. The write
    > timeing is also interesting, being faster than an unused port.

    Once again: reading from port 0x80 goes to the DMA page device.


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      Last update: 2007-12-17 22:25    [W:0.037 / U:1.076 seconds]
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