Re: [linux-usb-devel] [PATCH] usb/hid: The HID Simple Driver Interface 0.3.2 (core)

From: Dmitry Torokhov
Date: Sun Oct 08 2006 - 23:43:06 EST


On Sunday 08 October 2006 14:51, Anssi Hannula wrote:
> (I didn't get Dmitry's original mail, so replying here)
>
> raise.sail@xxxxxxxxx wrote:
> > Dmitry Torokhov wrote:
> >> Then there is issue with automatic loading of these sub-drivers. How
> >> do they get loaded? Or we force everything to be built-in making HID
> >> module very fat (like psmouse got pretty fat, but with HID prtential
> >> for it to get very fat is much bigger).
> >>
> >> The better way would be to split hid-input into a library module that
> >> parses hid usages and reports and is shared between device-specific
> >> modules that are "real" drivers (usb-drivers, not hid-sub-drivers).
>
> One possibility is to do that with symbol_request() and friends. That
> would not be pretty though, imho.
>
> DVB subsystem uses that currently to load frontend modules dynamically,
> see dvb_attach() and dvb_frontend_detach() in
> drivers/media/dvb/dvb-core/dvbdev.h and
> drivers/media/dvb/dvb-core/dvb_frontend.c.
>

Unfortunately this does not quite work when hid is built-in and the rest
are modules :(

--
Dmitry
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