From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Jeremy Moles <jeremy@emperorlinux.com>
Cc: linux-input@vger.kernel.org, Jiri Kosina <jkosina@suse.cz>
Subject: Re: Researching An Experimental Touchscreen Driver
Date: Sat, 27 Nov 2010 21:55:08 -0800 [thread overview]
Message-ID: <20101128055507.GA14499@core.coreip.homeip.net> (raw)
In-Reply-To: <1290917571.1932.15.camel@bathysphere>
On Sat, Nov 27, 2010 at 11:12:51PM -0500, Jeremy Moles wrote:
>
> WHOA! Now we're cooking! My probe succeeds and now my
> event/input_mapping/input_mapped functions all get called!
>
> When driver developers are writing HID glue drivers like this, how is it
> you generally determine the contents of your drv_data structure? Via
> hardware specs or is there some way to poke at the device via USB and
> have it tell you? Perhaps this question is a bit TOO out of line, as I'm
> sure that information is available in the standard USB HID
> information...
>
If you are talking about data structures that are accessed via
hig_get_drvdata() and hid_set_drvdata() then it is entirely up to driver
writer to define them. Basically whatever state you need to be able to
handle the device.
--
Dmitry
next prev parent reply other threads:[~2010-11-28 5:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-24 16:07 Researching An Experimental Touchscreen Driver Jeremy Moles
2010-11-27 22:48 ` Jeremy Moles
2010-11-27 23:51 ` Dmitry Torokhov
2010-11-28 2:23 ` Jeremy Moles
2010-11-28 3:07 ` Dmitry Torokhov
2010-11-28 4:12 ` Jeremy Moles
2010-11-28 5:55 ` Dmitry Torokhov [this message]
2010-11-28 6:38 ` Dmitry Torokhov
2010-11-28 15:38 ` Jiri Kosina
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