Re: brcmsmac in kernel driver on a Samsung NC110

["Arend van Spriel" <arend@broadcom.com>]

On 03/28/2013 11:03 AM, John Talbut wrote:
> On 27/03/13 16:15, Arend van Spriel wrote:
>>> cd /sys/bus/bcma/drivers/brcmsmac
>>> echo bcma0:0 > bind
>>>
>>> And I now have wlan0.
>>>
>>> So, how to get the firmware loaded after the root filesystem is mounted?
>>
>> You just did. I admit this is a bit tricky way to do it. The driver
>> would need to be reworked to defer firmware loading, but there is not
>> clear API. I believe the general recommendation is to attempt firmware
>> loading upon IFFUP, because you can assume the actual root filesystem is
>> mounted upon receiving that notification. Let me try to come up with a
>> patch.
>>
> With dependency based booting it would seem to me that it should be
> possible to make the creation of this driver dependent on the root
> filesystem being mounted.  Alternatively the firmware could be included
> in the initramfs.

It actually needs a user-space helper. As I understood things there is
no way for the kernel to know whether user-space has everything in place
to handle the firmware request.

> Or the firmware could be incorporated into the driver.
> 
> Anyway, thanks for your help, and Rafał and Hauke.  I have put the
> information at http://wiki.debian.org/brcm80211.

I tried to get a patch to you yesterday. Did you get that?

Gr. AvS