Re: Kernel Firmware Loading

[Patrick Mansfield <patmans@us.ibm.com>]

On Tue, Nov 08, 2005 at 01:16:25PM +0500, Alexander E. Patrakov wrote:
> Patrick Mansfield wrote:
> 
> >So the proposed (or current?) hotplug firmware interface can block other
> >PCI (or other) devices from binding?
> > 
> >
> I am not sure what exactly you mean. Attempting to answer anyway for the 
> current firmware implementation.
> 
> For an experiment, I created a simple "driver" for a PCI device, that 
> only calls request_firmware() in its probe() function and does nothing 
> else. I built this driver as a non-module and booted the resulting kernel.
> 
> The boot process was indeed delayed by 10 seconds while this driver 
> waited for its "firmware". After that delay, the kernel proceeded as 
> usual. If I provide the "firmware" in initramfs, no delay occurs.

Thanks, I was wondering what happens in the above scenario, that and
Greg's email explain it.

-- Parick Mansfield


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