Re: Universal Driver Interface spec available

Jeff Garzik (jgarzik@pobox.com)
Wed, 01 Sep 1999 17:50:07 -0400


Alan Cox wrote:
> Not sure why anyone thinks this is Linux relevant 8) - other than it will help
> to make our drivers even faster than the competition if they adopt it.
> Have a read, but keep a bucket handy

In response to you and David: I agree :) But if vendors take this
seriously, I have a feeling a UDI interface will eventually appear.
Lack of UDI support may be an encouragement or a discouragement,
depending on the complexity of the device driver.

On a related subject, I think Linux could use a much more coherent --
and documented -- device driver interface. Writing portable Linux
device drivers requires very in-depth knowledge of the Linux 'arch'
code; I find myself checking the Alpha or Sparc arch code a lot to make
sure that the I/O routines and such that I call work as expected.

Regards,

Jeff

-- 
Americans' greatest fear is that America will turn out to have been a
phenomenon, not a civilization.
                -- Shirley Hazzard, "Transit of Venus"

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