From: Dmitry Torokhov <dtor_core@ameritech.net>
To: Philip Lawatsch <philip@lawatsch.at>
Subject: Re: generating keyboard events from userspace
Date: Sun, 15 Jan 2006 12:54:48 -0500
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On Sunday 15 January 2006 11:57, Philip Lawatsch wrote:
> Hi,
> 
> I'm currently writing an userspace application (with libusb) which 
> handles the LCD display on a logitech g15 keyboard.
> 
> This keyboard consists of two usb devices + a usb hub. One device is the 
> normal keyboard and the other device is the lcd + the special keys.
> Both devices get detected by the usb-hid driver.
> 
> Now the problem is that in order to access the lcd from userspace I have 
> to detach usb-hid driver from the interface so I can use it. (Or, I'd 
> have to write a driver for it which I'd like to avoid).
> 
> So, is there any way to "inject" events generated by pressing the keys 
> on the device I'm handling myself back into the whole system from userspace?
> 
> I'd really like to avoid writing a kernel mode driver for this.
> 
> Any help would be appreciated (even redirecting me to a more suitable 
> mailing list, I didn't find any)
> 

You need uinput driver (drivers/input/misc/uinput.c)

-- 
Dmitry
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