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

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Message-Id: <200610082342.26110.dtor@insightbb.com>
Date:	Sun, 8 Oct 2006 23:42:25 -0400
From:	Dmitry Torokhov <dtor@...ightbb.com>
To:	Anssi Hannula <anssi.hannula@...il.com>
Cc:	"raise.sail@...il.com" <raise.sail@...il.com>,
	greg <greg@...ah.com>, Randy Dunlap <rdunlap@...otime.net>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-usb-devel <linux-usb-devel@...ts.sourceforge.net>
Subject: Re: [linux-usb-devel] [PATCH] usb/hid: The HID Simple Driver	Interface 0.3.2 (core)

On Sunday 08 October 2006 14:51, Anssi Hannula wrote:
> (I didn't get Dmitry's original mail, so replying here)
> 
> raise.sail@...il.com 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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