kernel-ark/drivers/uio/Kconfig
Hans-Jürgen Koch bc4c4f45ac UIO: Hilscher CIF card driver
this is a patch that adds support for Hilscher CIF DeviceNet and
Profibus cards. I tested it on a Kontron CPX board, and Thomas reviewed
it.

You can find the user space part here:

http://www.osadl.org/projects/downloads/UIO/user/cif-0.1.0.tar.gz

Notes: cif_api.c is the main file you want to look at. It contains the
functions to open, close, mmap and so on. cif_dps.c adds functions
specific to Profibus cards, and cif_dn.c contains functions for
DeviceNet cards.  cif.c is a universal playground, it's just a small
test program.  The user space part of this UIO driver is still work in
progress, and not everything is tested yet. At the moment, the thread in
cif_api.c contains some code that artificially makes the card generate
interrupts, this was added for testing and will be removed later. But
the driver already contains all the functions needed for useful
operation, so it gives a good idea of how such a thing looks like.

For comparison, here's what you get from the manufacturer
(www.hilscher.com) when you ask for a Linux 2.6 driver:

http://www.tglx.de/private/hjk/cif-orig-2.6.tar.bz2

WARNING: Don't look at the code for too long, you might become sick :-)


Signed-off-by: Hans-Jürgen Koch <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-18 15:57:16 -07:00

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menu "Userspace I/O"
depends on !S390
config UIO
tristate "Userspace I/O drivers"
default n
help
Enable this to allow the userspace driver core code to be
built. This code allows userspace programs easy access to
kernel interrupts and memory locations, allowing some drivers
to be written in userspace. Note that a small kernel driver
is also required for interrupt handling to work properly.
If you don't know what to do here, say N.
config UIO_CIF
tristate "generic Hilscher CIF Card driver"
depends on UIO && PCI
default n
help
Driver for Hilscher CIF DeviceNet and Profibus cards. This
driver requires a userspace component that handles all of the
heavy lifting and can be found at:
http://www.osadl.org/projects/downloads/UIO/user/cif-*
To compile this driver as a module, choose M here: the module
will be called uio_cif.
endmenu