> No.
>
> After the firmware is loaded into the device properly, you will then
> call comedi_config from the driver itself to initialize everything.
No. This needs to be done from userspace or in other words from a udev
script. ;) This has loads of practical reasons to have the final
association between the driver and the comedi device in userspace. For
example, in cases of multiple devices communicating with different
drivers. That's something for a udev rule. Sorry. But what you are
suggesting just now seems to me like a workaround for the coldplug
problem: the firmware is loaded via a firmware event (created by the
driver) and I should move comedi_config into my driver because there are
no udev events during coldplug.
> Yes it will as the startup scripts already know how to handle coldplug
> firmware events.
To give the "magic" a name: you mean udev adm trigger? Or a nice script
which writes "add" to all "uvents"? This is exactly what doesn't work.
There are absolutely no udev events generated for comedi during boot.
I've checked that now thoroughly and I think there's something wrong.
What could that be?
/Bernd
Greg KH wrote:
On Mon, Dec 01, 2008 at 06:27:30PM +0000, Bernd Porr wrote:
Ok. I'll look into that. So, you mean that I create with the "request
firmware" a new udev event which then could also call "comedi_config"?
No.
After the firmware is loaded into the device properly, you will then
call comedi_config from the driver itself to initialize everything.
The problem just now is that I don't get any udev events during
coldplug. Do you think this will also solve that issue?
One practical thing: it's probably a good idea to work on the driver
version which goes into the kernel and not the one in the comedi CVS. Where
can I check out my module just now?
Grab the linux-next tree, your driver and cleanups, are in there.
thanks,
greg k-h
--
www: http://www.berndporr.me.uk/
http://www.linux-usb-daq.co.uk/
http://www.myfriendhelen.org.uk/
Mobile: +44 (0)7840 340069
Work: +44 (0)141 330 5237
University of Glasgow
Department of Electronics & Electrical Engineering
72 Oakfield Avenue (Rankine Building for deliveries)
Glasgow, G12 8LT
--
To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
