RE: firmware separation filesystem (fwfs)

From: Perez-Gonzalez, Inaky (
Date: Wed Apr 16 2003 - 21:00:00 EST

> From: David Gibson []
> Incidentally another approach that also avoids nasty ioctl()s would be
> to invoke the userland helper with specially set up FD 1, which lets
> the kernel capture the program's stdout.

I think this makes too many assumptions specially taking into
account that most hotplug stuff are shell scripts - they are
probably going to be writing all kinds of stuff to stdout.

With the risk of repeating myself (again) and being a PITA,
I really think it'd be easier to copy the firmware file to a
/sysfs binary file registered by the device driver during
initialization; then the driver can wait for the file to be
written with a valid firmware before finishing the init
sequence. The infrastructure is already there (or isn't ...
is it?).


Iñaky Pérez-González -- Not speaking for Intel -- all opinions are my own
(and my fault)
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