Search Linux Wireless

Re: in-kernel drivers and firmware loader

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 2012-05-11 at 13:03 +0200, Kay Sievers wrote:

> > I am testing on a PandaBoard which boots a linux kernel without a initrd
> > and our device is detected before the root filesystem is mounted. I was
> > expecting the async firmware request to get called back immediatly with
> > firmware pointer being NULL. The behaviour is slightly different as this
> > callback is coming after 60 seconds, which is the timeout. I guess the
> > uevent just gets lost without the kernel knowing it. Is that correct?
> 
> It's probably sent, but nothing see it because there is no userspace
> that would have subscribed.
> 
> If udev is started later during bootup, and the coldplug triggers all
> events again, the firmware request should be found and be fulfilled by
> userspace -- at least that's the theory.

I haven't really read all of the message, but we've also had users who
observed in some cases that the coldplug doesn't properly trigger
firmware load requests. Unfortunately, I don't have any details.

johannes

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux