linux-kernel - Re: [PATCH] Logitech G13 driver 0.0.2

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Message-Id: <20100106144447.b5ea9b1f.akpm@linux-foundation.org>
Date:	Wed, 6 Jan 2010 14:44:47 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Rick L. Vinyard Jr." <rvinyard@...nmsu.edu>
Cc:	linux-kernel@...r.kernel.org, felipe.balbi@...ia.com,
	krzysztof.h1@...pl, linux-usb@...r.kernel.org, oliver@...kum.org,
	linux-input@...r.kernel.org, jkosina@...e.cz
Subject: Re: [PATCH] Logitech G13 driver 0.0.2

On Mon, 14 Dec 2009 15:44:46 -0700
"Rick L. Vinyard Jr." <rvinyard@...nmsu.edu> wrote:

> his is a driver for the Logitech G13 gamepad, and contains three
> key parts. In the USB reports the device identifies itself as a
> HID, and as a result this driver is under the HID framework.
> 
> There are two primary sub-components to this driver; an input
> device and a framebuffer device.
> 
> Although identified as a HID, the device does not support standard
> HID input messages. As a result, a sub-input device is allocated and
> registered separately in g13_probe(). The raw events are monitored 
> and key presses/joystick activity is reported through the input device 
> after referencing an indexed keymap.
> 
> Additionally, this device contains a 160x43 monochrome LCD display.
> A registered framebuffer device manages this display. The design
> of this portion of the driver was based on the design of the
> hecubafb driver with deferred framebuffer I/O since there is
> no real memory to map.

I get this from x86_64 allmodconfig:

drivers/hid/hid-g13.o:(.rodata+0x0): multiple definition of `__mod_hid_device_table'
drivers/hid/hid-lg.o:(.rodata+0x0): first defined here
/opt/crosstool/gcc-4.0.2-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-ld: Warning: size of symbol `__mod_hid_device_table' changed from 552 in drivers/hid/hid-lg.o to 48 in drivers/hid/hid-g13.o
drivers/hid/hid-g13.o: In function `init_module':
hid-g13.c:(.init.text+0x0): multiple definition of `init_module'
drivers/hid/hid-lg.o:hid-lg.c:(.init.text+0x0): first defined here
drivers/hid/hid-g13.o: In function `cleanup_module':
hid-g13.c:(.exit.text+0x0): multiple definition of `cleanup_module'
drivers/hid/hid-lg.o:hid-lg.c:(.exit.text+0x0): first defined here

Confused.
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