linux-kernel - [RFC ebeam PATCH 0/3] new USB eBeam input driver

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Date:	Mon, 20 Jul 2015 23:03:17 +0200
From:	Yann Cantin <yann.cantin@...oste.net>
To:	linux-input@...r.kernel.org, linux-usb@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
	dmitry.torokhov@...il.com, jkosina@...e.cz,
	gregkh@...uxfoundation.org
Subject: [RFC ebeam PATCH 0/3] new USB eBeam input driver

Hi,

New USB input driver for eBeam devices.

Currently supported (tested) :
- Luidia eBeam classic projection and edge projection models
- Nec "interactive solution" NP01Wi1 & NP01Wi2 accessories.

Patch 1 to blacklist the devices for hid generic-usb.

Patch 2 is the actual driver.

Notable stuff :
- use div64_s64 for portable 64/64-bits divisions.
- 13 sysfs custom files : 9 values for the transformation matrix,
  4 for xy ranges and a calibration trigger.
- need userspace gui tool for calibration (ebeam.tuxfamily.org)

Side notes :
- The module run fine since 3.3.6, both x86_32 and 64.
- Already reviewed in 2012 and 2013, but i have'nt pushed for inclusion.
- The only recent change is switching to non world-writable sysfs files.
- There is a proprietary application suite based on libusb, hope it won't
  break with this driver.

Thanks for your help.

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