linux-kernel - Re: [PATCH v3 0/6] hid: Introduce device groups

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Date:	Mon, 23 Apr 2012 17:21:15 +0200
From:	Benjamin Tissoires <benjamin.tissoires@...il.com>
To:	Henrik Rydberg <rydberg@...omail.se>
Cc:	linux-input <linux-input@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH v3 0/6] hid: Introduce device groups

Hi Henrik,

Thanks for handling this. I still won't have the time to review this
patch set before early may as I'm out of my office. Also sorry for not
answering the previous mails, I did not had a reliable internet
connection during my holidays.

Thanks,
Benjamin

Le 23 avr. 2012 12:03, "Henrik Rydberg" <rydberg@...omail.se> a écrit :
>
> Hi Jiri.
>
> Here is the third version of the extension to the device-driver
> matching mechanism. AFAICT, there are no outstanding issues. I think
> we are getting close. :-)
>
> Building on the report fixup patches, this patchset brings a bit of
> transparency to the hid bus, by the addition of device groups.  This
> allows a more versatile handling of hid drivers in userland, and
> simplifies the logic in the kernel.
>
> In particular, there can be one generic module per device group, and
> those modules are handled automatically by udev. Dynamic rebinding of
> drivers is fully supported. For instance, to load a special
> out-of-tree driver instead of the a generic one, simply unbind the
> device and load the new module. One can also keep _all_ generic
> drivers as modules, significantly simplifying the process of adding
> and testing new features.
>
> And, of course, auto-loading of new multitouch drivers works, since
> that was what triggered this patchset to begin with. :-)
>
> The second patch contains a simple descriptor scanner that is
> new. The last patch unifies the generic drivers into a single,
> loadable module.
>
> Enjoy,
> Henrik
>
> Henrik Rydberg (6):
>  hid: Add device group to modalias
>  hid: Scan the device for group info before adding it
>  hid: Allow bus wildcard matching
>  hid: Create a generic device group
>  hid-multitouch: Switch to device groups
>  hid: Create a common generic driver
>
>  drivers/hid/Kconfig             |   12 +++
>  drivers/hid/Makefile            |    2 +
>  drivers/hid/hid-core.c          |  172 ++++++++++++++++++++-------------------
>  drivers/hid/hid-generic.c       |   53 ++++++++++++
>  drivers/hid/hid-input.c         |   11 ---
>  drivers/hid/hid-multitouch.c    |    3 +-
>  drivers/hid/usbhid/hid-core.c   |   16 ----
>  include/linux/hid.h             |   20 +++--
>  include/linux/mod_devicetable.h |    4 +-
>  net/bluetooth/hidp/core.c       |   27 +-----
>  scripts/mod/file2alias.c        |    5 +-
>  11 files changed, 180 insertions(+), 145 deletions(-)
>  create mode 100644 drivers/hid/hid-generic.c
>
> --
> 1.7.10
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