Commit Graph

30799 Commits

Author SHA1 Message Date
Benjamin Herrenschmidt
2b9e68f728 [libata] pata_sil680: Add MMIO support
This patch adds MMIO support to the pata_sil680 for taskfile IOs,
based on what the old siimage does.

I haven't bothered changing the chip setup stuff from PCI config
cycles to MMIO though (siimage does it), I don't think it matters,
I've only adapted it to use MMIO for taskfile accesses.

I've tested it on a Cell blade and it seems to work fine.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15 14:58:51 -04:00
Linus Torvalds
4271e0f7e1 Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.c
Commit 5a7ad7f044 removed all uses of
'retval', but didn't remove the variable itself.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 09:07:58 -07:00
Linus Torvalds
b5869ce7f6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits)
  sched: sync wakeups preempt too
  sched: affine sync wakeups
  sched: guest CPU accounting: maintain guest state in KVM
  sched: guest CPU accounting: maintain stats in account_system_time()
  sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields
  sched: guest CPU accounting: add guest-CPU /proc/stat field
  sched: domain sysctl fixes: add terminator comment
  sched: domain sysctl fixes: do not crash on allocation failure
  sched: domain sysctl fixes: unregister the sysctl table before domains
  sched: domain sysctl fixes: use for_each_online_cpu()
  sched: domain sysctl fixes: use kcalloc()
  Make scheduler debug file operations const
  sched: enable wake-idle on CONFIG_SCHED_MC=y
  sched: reintroduce topology.h tunings
  sched: allow the immediate migration of cache-cold tasks
  sched: debug, improve migration statistics
  sched: debug: increase width of debug line
  sched: activate task_hot() only on fair-scheduled tasks
  sched: reintroduce cache-hot affinity
  sched: speed up context-switches a bit
  ...
2007-10-15 08:22:16 -07:00
Linus Torvalds
df3d80f5a5 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (207 commits)
  [SCSI] gdth: fix CONFIG_ISA build failure
  [SCSI] esp_scsi: remove __dev{init,exit}
  [SCSI] gdth: !use_sg cleanup and use of scsi accessors
  [SCSI] gdth: Move members from SCp to gdth_cmndinfo, stage 2
  [SCSI] gdth: Setup proper per-command private data
  [SCSI] gdth: Remove gdth_ctr_tab[]
  [SCSI] gdth: switch to modern scsi host registration
  [SCSI] gdth: gdth_interrupt() gdth_get_status() & gdth_wait() fixes
  [SCSI] gdth: clean up host private data
  [SCSI] gdth: Remove virt hosts
  [SCSI] gdth: Reorder scsi_host_template intitializers
  [SCSI] gdth: kill gdth_{read,write}[bwl] wrappers
  [SCSI] gdth: Remove 2.4.x support, in-kernel changelog
  [SCSI] gdth: split out pci probing
  [SCSI] gdth: split out eisa probing
  [SCSI] gdth: split out isa probing
  gdth: Make one abuse of scsi_cmnd less obvious
  [SCSI] NCR5380: Use scsi_eh API for REQUEST_SENSE invocation
  [SCSI] usb storage: use scsi_eh API in REQUEST_SENSE execution
  [SCSI] scsi_error: Refactoring scsi_error to facilitate in synchronous REQUEST_SENSE
  ...
2007-10-15 08:19:33 -07:00
Linus Torvalds
3d06f7a5f7 Merge branch 'agp-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/agp-2.6
* 'agp-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/agp-2.6:
  fix use after free in amd create gatt pages
  AGP fix race condition between unmapping and freeing pages
2007-10-15 08:18:44 -07:00
Linus Torvalds
13626cb91f Merge branch 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  via invalid device ids removal
  radeon: Commit the ring after each partial texture upload blit.
  i915: fix vbl swap allocation size.
  drm: Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.
  drm: remove XFREE86_VERSION macros.
  drm: Replace filp in ioctl arguments with drm_file *file_priv.
  drm: Remove DRM_ERR OS macro.
2007-10-15 08:17:26 -07:00
Jiri Kosina
57d292bd7e HID: fix HIDIOCGRDESC memory access in hidraw
Fix bogus copying of data into userspace when HIDIOCGRDESC is issued.
HID-transport layer makes sure that dev->hid->rdesc is not larger than
HID_MAX_DESCRIPTOR_SIZE.

Noticed-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 08:12:00 -07:00
Laurent Vivier
d172fcd3ae sched: guest CPU accounting: maintain guest state in KVM
Modify KVM to update guest time accounting.

[ mingo@elte.hu: ported to 2.6.24 KVM. ]

Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Acked-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15 17:00:19 +02:00
Xavier Bachelot
ace3dff5b7 via invalid device ids removal
0x1106, 0x7204 is unknown and thus is not an IGP/GPU.
0x1106, 0x3304 is K8M800 hostbridge, not an IGP/GPU.
None of them are in drm git tree.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2007-10-15 11:09:35 +10:00
chaohong guo
eed0f722b3 radeon: Commit the ring after each partial texture upload blit.
This makes sure each blit starts as early as possible, which may improve
texture upload performance in some cases.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2007-10-15 10:45:49 +10:00
Dave Airlie
54583bf4ef i915: fix vbl swap allocation size.
Oops...

Signed-off-by: Dave Airlie <airlied@linux.ie>
2007-10-15 10:42:27 +10:00
Eric Anholt
c153f45f9b drm: Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.
The data is now in kernel space, copied in/out as appropriate according to t
This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal
with those failures.  This also means that XFree86 4.2.0 support for i810 DR
is lost.

Signed-off-by: Dave Airlie <airlied@linux.ie>
2007-10-15 10:38:20 +10:00
Dave Airlie
b589ee5943 drm: remove XFREE86_VERSION macros.
These are no longer needed or being used.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2007-10-15 10:38:20 +10:00
Eric Anholt
6c340eac02 drm: Replace filp in ioctl arguments with drm_file *file_priv.
As a fallout, replace filp storage with file_priv storage for "unique
identifier of a client" all over the DRM.  There is a 1:1 mapping, so this
should be a noop.  This could be a minor performance improvement, as everyth
on Linux dereferenced filp to get file_priv anyway, while only the mmap ioct
went the other direction.

Signed-off-by: Dave Airlie <airlied@linux.ie>
2007-10-15 10:38:20 +10:00
Eric Anholt
20caafa6ec drm: Remove DRM_ERR OS macro.
This was used to make all ioctl handlers return -errno on linux and errno on
*BSD.  Instead, just return -errno in shared code, and flip sign on return f
shared code to *BSD code.

Signed-off-by: Dave Airlie <airlied@linux.ie>
2007-10-15 10:38:19 +10:00
Jesper Juhl
bdc3e603cd fix use after free in amd create gatt pages
Coverity spotted a "use after free" bug in
drivers/char/agp/amd-k7-agp.c::amd_create_gatt_pages().

The problem is this:
	If "entry = kzalloc(sizeof(struct amd_page_map), GFP_KERNEL);"
fails, then there's a loop in the function to free all entries
allocated so far and break out of the allocation loop. That in itself
is pretty sane, but then the (now freed) 'tables' is assigned to
amd_irongate_private.gatt_pages and 'retval' is set to -ENOMEM which
causes amd_free_gatt_pages(); to be called at the end of the function.
The problem with this is that amd_free_gatt_pages() will then loop
'amd_irongate_private.num_tables' times and try to free each entry in
tables[] - this is bad since tables has already been freed and
furthermore it will call kfree(tables) at the end - a double free.

This patch removes the freeing loop in amd_create_gatt_pages() and
instead relies entirely on the call to amd_free_gatt_pages() to free
everything we allocated in case of an error. It also sets
amd_irongate_private.num_tables to the actual number of entries
allocated instead of just using the value passed in from the caller -
this ensures that amd_free_gatt_pages() will only attempt to free
stuff that was actually allocated.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2007-10-15 10:32:15 +10:00
Dave Airlie
a2721e998e AGP fix race condition between unmapping and freeing pages
With Andi's clflush fixup, we were getting hangs on server exit, flushing the
mappings after freeing each page helped.

This showed up a race condition where the pages after being freed could be
reused before the agp mappings had been flushed.  Flushing after each single
page is a bad thing for future drm work, so make the page destroy a two pass
unmapping all the pages, flushing the mappings, and then destroying the pages.

Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-10-15 10:32:15 +10:00
David Brownell
23fd50450a Fix compile while compiling drivers/mmc/host/mmc_spi.o with !BLOCK
Make sure the mmc_spi driver can build without CONFIG_BLOCK.
Issue noted by "Avuton Olrich" <avuton@gmail.com> and randconfig.

While that won't be a common configuration, sometimes embedded
boards use SDIO to interface WLAN or Bluetooth chips (vs some
parallel interface), and don't provide an MMC/SD socket for use
with flash memory cards.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 16:48:52 -07:00
Stephen Hemminger
5c0d6b34d6 sky2: reboot fix
The call to napi_disable() in the PCI shutdown handler is problematic,
and is aggravated by the new NAPI.
Also, make sure watchdog timer doesn't go off.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 16:46:44 -07:00
Linus Torvalds
4fa435018d Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (53 commits)
  hwmon: (vt8231) fix sparse warning
  hwmon: (sis5595) fix sparse warning
  hwmon: (w83627hf) don't assume bank 0
  hwmon: (w83627hf) Fix setting fan min right after driver load
  hwmon: (w83627hf) De-macro sysfs callback functions
  hwmon: Add new combined driver for FSC chips
  hwmon: (ibmpex) Release IPMI user if hwmon registration fails
  hwmon: (dme1737) Add sch311x support
  hwmon: (dme1737) group functions logically
  hwmon: (dme1737) cleanups
  hwmon: IBM power meter driver
  hwmon: (coretemp) Add support for Celeron 4xx
  hwmon: (lm87) Disable VID when it should be
  hwmon: (w83781d) Add individual alarm and beep files
  hwmon: VRM is not read from registers
  MAINTAINERS: update hwmon subsystem git trees
  hwmon: Fix the code examples in documentation
  hwmon: update sysfs interface document - error handling
  hwmon: (thmc50) Fix a debug message
  hwmon: (thmc50) Don't create temp3 if not enabled
  ...
2007-10-14 12:50:19 -07:00
Martin Bachem
7441dd12e6 hisax: hfc_usb: update to current CVS version
- killed paranoid NULL Pointer check
- human readable LED states
- support for "Eicon DIVA USB 4.0" (0x071d/0x1005)

Signed-off-by: Martin Bachem <info@colognechip.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:45:14 -07:00
Al Viro
325a80715f ipg: endianness fixes
if your mask is host-endian, you should apply it after le64_to_cpu();
if it's little-endian - before.  Doing both (for the same mask and
little-endian value) is broken.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
857e37dc36 ipg: endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
d9a19d200f hamradio: ->hard_header() takes packet type in host-endian
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
fa8a4b63da more tulip endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
eb4d84f185 ibm_newemac annotations (iomem, NULL noise)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
b4482a4b2e more trivial signedness fixes in drivers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
64a6f9500d signedness: module_param_array nump argument
... should be unsigned int

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Al Viro
64b33619a3 long vs. unsigned long - low-hanging fruits in drivers
deal with signedness of the stuff passed to set_bit() et.al.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Al Viro
51ef9c57f0 synclink_gt endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Al Viro
1ccc9147f6 fw-cdev __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Al Viro
a39f9d028a mpc5200_wdt: __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Al Viro
47063d6b11 remove duplicate initializer (macvlan)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Al Viro
bef1bc95f3 skb->tail in ibm_newemac should be skb_tail_pointer()
... since that sucker is not 32bit-only and on 64bit skb->tail is an
offset, not a pointer.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:51 -07:00
Mark M. Hoffman
a022fef5a2 hwmon: (vt8231) fix sparse warning
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-14 15:00:24 -04:00
Mark M. Hoffman
5460a9d0ff hwmon: (sis5595) fix sparse warning
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-14 14:57:35 -04:00
Linus Torvalds
52d4e661ac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (21 commits)
  HID: hidraw_connect() memleak fix
  HID: add hidraw interface
  USB HID: provide hook for hidraw write()
  HID: hiddev: Add 32bit ioctl compatibilty
  HID: Add GeneralTouch touchscreen to the blacklist
  HID: add support for Microsoft Wireless Laser Keyboard 6000
  Input: add KEY_LOGOFF
  USBHID: report descriptor fix for MacBook JIS keyboard
  HID: trivial fixes in hid-debug
  HID: fix input mapping for Microsoft Ergonomic Keyboard
  HID: use hid-plff driver for GreenAsia 0e8f:0003 devices
  USBHID: Add HID_QUIRK_NOGET for ELO Touch Screen 2700 display
  HID: enable hiddev for the SantaRosa MacBookPro IR receiver
  USBHID: add CM109 device to blacklist
  HID: Report usage codes of keys as EV_MSC scancode events
  HID: ignore all non-LED usages in output fields in hid-input
  HID: fix whitespace damage
  HID: add support for Thrustmaster FGT Force Feedback wheel
  HID: minimal autosuspend support for USB HID devices
  HID: add support for Microsoft Natural Ergonomic Keyboard 4000
  ...
2007-10-14 09:03:42 -07:00
Linus Torvalds
f248488b39 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] fix mtdconcat for subpage-write NAND
  [MTD] [OneNAND] Avoid deadlock in erase callback; release chip lock first.
  [MTD] [OneNAND] Return only negative error codes
  [MTD] [OneNAND] Synchronize block locking operations
  UBI: return correct error code
  UBI: remove useless inlines
  UBI: fix atomic LEB change problems
  UBI: use byte hexdump
  UBI: do not use vmalloc on I/O path
  UBI: allocate memory with GFP_NOFS
  UBI: use linux print_hex_dump(), not home-grown one
  UBI: don't use array index before testing if it is negative
  UBI: add more prints
  UBI: fix sparse warnings
  UBI: fix leak in ubi_scan_erase_peb
2007-10-14 09:02:40 -07:00
Linus Torvalds
cbe619b162 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (23 commits)
  [SPARC64]: virt_to_real_irq_table --> virt_irq_table
  [SPARC64]: virt_irq --> bucket mapping no longer necessary
  [SPARC64]: Kill ugly __bucket() macro.
  [SPARC64]: Kill ugly __irq_ino() macro.
  [SPARC64]: Only use bypass accesses to INO buckets.
  [SPARC64]: Update defconfig.
  [SPARC64]: Use sun4v VIRQ interfaces as intended.
  [SPARC64]: Allocate ivector_table dynamically.
  [SPARC64]: Access ivector_table[] using physical addresses.
  [SPARC64]: Make IVEC pointers 64-bit.
  [SPARC64]: Fix register usage in xor_raid_4().
  [SPARC64]: Kill pci_memspace_mask.
  [SPARC64]: Consolidate MSI support code.
  [SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.
  [SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes.
  [SPARC/64]: Prepare to remove of_platform_driver name.
  [SPARC32]: Add irqflags.h to sparc32 and use it from generic code.
  [SPARC64]: beautify vmlinux.lds
  [SPARC]: beautify vmlinux.lds
  [SPARC64]: Enable MSI on sun4u Fire PCI-E controllers.
  ...
2007-10-14 08:59:48 -07:00
Grant Likely
5dd80d5d09 mpc52xx-uart: fix compile warning (format type mismatch)
Trivial compile warning fix

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:57:30 -07:00
Grant Likely
80d4b4169e mpc52xx-ata: fix compile warning (unused variable)
Trivial unused variable fix

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:57:30 -07:00
Grant Likely
86a2249d69 XilinxFB: typo bugfix
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:56:33 -07:00
Al Viro
9ec0fd4e37 more uevent fallout (drivers/base/memory.c)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:53:33 -07:00
Al Viro
409f243520 missing include in ssb
Using readw() and friends => needs to pull io.h and not all targets are
doing that via indirect chains.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:53:33 -07:00
Al Viro
97be91c183 typo in ibm_newemac/rgmii.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:53:33 -07:00
Al Viro
7ac0326c3f uevent environment changes fallout
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 08:53:33 -07:00
David Woodhouse
e3d18658d4 Merge branch 'master' of git://git.infradead.org/~dedekind/ubi-2.6 2007-10-14 14:29:00 +01:00
Jiri Kosina
d057fd4cb8 Merge branch 'hidraw' into for-linus 2007-10-14 14:47:56 +02:00
Mariusz Kozlowski
709d27c04f HID: hidraw_connect() memleak fix
It looks like hidraw_connect() is leaking memory in case of failure.
Also it should return -ENOMEM when kzalloc fails.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-10-14 14:47:26 +02:00
Jiri Kosina
86166b7bcd HID: add hidraw interface
hidraw is an interface that is going to obsolete hiddev one
day.

Many userland applications are using libusb instead of using
kernel-provided hiddev interface. This is caused by various
reasons - the HID parser in kernel doesn't handle all the
HID hardware on the planet properly, some devices might require
its own specific quirks/drivers, etc.

hiddev interface tries to do its best to parse all the received
reports properly, and presents only parsed usages into userspace.
This is however often not enough, and that's the reason why
many userland applications just don't use hiddev at all, and
rather use libusb to read raw USB events and process them on
their own.

Another drawback of hiddev is that it is USB-specific.

hidraw interface provides userspace readers with really raw HID
reports, no matter what the low-level transport layer is (USB/BT),
and gives the userland applications all the freedom to process
the HID reports in a way they wish to.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-10-14 14:47:26 +02:00