aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/uio
Commit message (Collapse)AuthorAgeFilesLines
* UIO: add pgprot_noncached() to UIO mmap codeJean-Samuel Chenard2008-03-241-0/+2
| | | | | | | | | | | | Mapping of physical memory in UIO needs pgprot_noncached() to ensure that IO memory is not cached. Without pgprot_noncached(), it (accidentally) works on x86 and arm, but fails on PPC. Signed-off-by: Jean-Samuel Chenard <jsamch@gmail.com> Signed-off-by: Hans J Koch <hjk@linutronix.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* UIO: fix Greg's stupid changesBrandon Philips2008-02-211-17/+37
| | | | | | | | | | | | | | | | | This fixes two bugs with UIO that cropped up recently in -rc1 1) WARNING: at fs/sysfs/file.c:334 sysfs_open_file when trying to open a map addr/size file - complaining about missing sysfs_ops for ktype 2) Permission denied when reading uio/uio0/maps/map0/{addr,size} when files are mode S_IRUGO Also fix a typo: attr_attribute -> addr_attribute Signed-off-by: Brandon Philips <bphilips@suse.de> Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* uio: nopageNick Piggin2008-02-061-8/+6
| | | | | | | | | Convert uio from nopage to fault. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Hans J Koch <hjk@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* UIO: constify function pointer tablesJan Engelhardt2008-01-241-2/+2
| | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Kobject: convert drivers/* from kobject_unregister() to kobject_put()Greg Kroah-Hartman2008-01-241-4/+4
| | | | | | | | | | | There is no need for kobject_unregister() anymore, thanks to Kay's kobject cleanup changes, so replace all instances of it with kobject_put(). Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Kobject: rename kobject_init_ng() to kobject_init()Greg Kroah-Hartman2008-01-241-1/+1
| | | | | | | | | Now that the old kobject_init() function is gone, rename kobject_init_ng() to kobject_init() to clean up the namespace. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Kobject: rename kobject_add_ng() to kobject_add()Greg Kroah-Hartman2008-01-241-1/+1
| | | | | | | | | Now that the old kobject_add() function is gone, rename kobject_add_ng() to kobject_add() to clean up the namespace. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* UIO: fix kobject usageGreg Kroah-Hartman2008-01-241-43/+48
| | | | | | | | | | | | | The uio kobject code is "wierd". This patch should hopefully fix it up to be sane and not leak memory anymore. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Benedikt Spranger <b.spranger@linutronix.de> Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* kobject: remove struct kobj_type from struct ksetGreg Kroah-Hartman2008-01-241-1/+1
| | | | | | | | | | | | | | | | | We don't need a "default" ktype for a kset. We should set this explicitly every time for each kset. This change is needed so that we can make ksets dynamic, and cleans up one of the odd, undocumented assumption that the kset/kobject/ktype model has. This patch is based on a lot of help from Kay Sievers. Nasty bug in the block code was found by Dave Young <hidave.darkstar@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* UIO: Hilscher CIF card driverHans-Jürgen Koch2007-07-183-1/+171
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* UIO: Add the User IO core codeHans J. Koch2007-07-183-0/+718
This interface allows the ability to write the majority of a driver in userspace with only a very small shell of a driver in the kernel itself. It uses a char device and sysfs to interact with a userspace process to process interrupts and control memory accesses. See the docbook documentation for more details on how to use this interface. From: Hans J. Koch <hjk@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Benedikt Spranger <b.spranger@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.1 at 2024-12-27 03:57:37 +0000