[linux-dvb] Re: 2.6 request_firmware and frontends

[Holger Waechtler <holger@convergence.de>]

Holger Waechtler wrote:
> Andrew de Quincey wrote:
>
> > I just spent a while trying to figure out how I would go about using 
> > the 2.6 request_firmware() calls for the tda1004x driver. As far as I 
> > can see, its impossible right now.
> >
> > The problem is you have to pass a struct device* into 
> > request_firmware() to tell the kernel which device you are. Frontend 
> > drivers have no idea of which physical device they are attached to.
>
> we could move the 'struct dvb_device *dvbdev' member from the struct 
> dvb_frontend_data to struct dvb_frontend, then it would get passed 
> directly to the ioctl.
oops - sorry, I misunderstood the problem.

To solve it cleanly this would need to rewrite the entire dvbdev code 
(to register a device/interface/bus/system class 'DVB' so that we can 
also load MPEG decoder and/or DSP firmwares cleanly -- in those cases we 
also have no attached predefined bus or device classes, at least not in 
STBs) but this would again make the entire code unportable and 2.6-only.

I'd vote instead for a politically less correct solution and leave the 
firmware code as-is and delay this for the v4 code -- this will probably 
be 2.6-only anyway.

Holger



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