uio

[Greg KH]

On Mon, Feb 21, 2011 at 12:32:39PM +0100, Gergely Buday wrote:
> Hi there,
> 
> I have found
> 
> http://www.kernel.org/doc/htmldocs/uio-howto.html
> 
> on writing userspace io drivers. Also I have found drivers/uio in the
> kernel source tree. As far as I understand,
> 
> uio_aec.c  uio_cif.c   uio_pci_generic.c  uio_pdrv_genirq.c
> uio.c      uio_netx.c  uio_pdrv.c         uio_sercos3.c
> 
> are the minimal kernel part of these drivers. Are there any
> implemented userspace drivers?

Yes.

> Where can I see source code for them?

They are floating around, some have links in their code for where it is.

good luck,

greg k-h