[Arm-netbook] building a device driver

[simon at koala.ie]

On Mon, 18 Jun 2012 18:14:19 +0100, lkcl luke <luke.leighton at gmail.com>  
wrote:

> On Mon, Jun 18, 2012 at 5:14 PM,  <simon at koala.ie> wrote:
>  hmm, what's the hardware - is it a USB device, for example?  if so,
> can you do "lsusb" and report its id (plug it into an x86 pc running
> gnu/linux if that's easier).  also do you know: does the device driver
> already exist in the linux kernel source code?

the device is a digital persona U.are.U 4500 fingerprint reader
it is a USB device [05ba:000a].

digital person provide a driver for linux in source code.
i have compiled it for my kernel on my desktop machine, installed it and  
run the demo apps.
my questions revolve around doing this for a tablet where i may or may not  
have access to the kernel source.
how do i compile against an existing kernel?

other fingerprint device vendors use libusb, which would a much simpler  
proposition.
-- 
simon

Simon Kenyon
e: simon at koala.ie
m: +353 86 240 0005