Currently this module needs to be manually configured by COMEDI
userspace tool before the test waveform can be read by a COMEDI
compatible application.
This patch adds auto-configuration capability and makes it the default
loading option. This is achieved by creating a device during init
to stand in for a real hardware device. This allows comedi_auto_config()
to perform auto-configuration. With this patch, the test waveform can
be read by a COMEDI compatible application without needing manual
configuration.
Previous behaviour is still selectable via module loading parameter.
Module loading without passing any parameter will default to
auto-configuration with the same default waveform amplitude and
period values. For auto-configuration, different amplitude and
period values can be set via module loading parameters.
Tested on Xubuntu 16.04 using Xoscope ver: 2.0 which is available
in the Ubuntu repository. Xoscope is a COMEDI compatible digital
oscilloscope application. For manual configuration, only module
loading/unloading is tested.
Here are the truncated dmesg output.
[sudo modprobe comedi_test]
comedi_test: module is from the staging directory, the quality is unknown,
you have been warned.
For those without an actual hardware, the comedi_test module
is as close as one can get to test the COMEDI system.
Having both auto and manual configuration capability will broaden
the test function of this module.
Hopefully this will make it easier for people to check out the
COMEDI system and contribute to its development.
Franck Demathieu [Mon, 13 Feb 2017 08:35:19 +0000 (09:35 +0100)]
staging: nvec: Fix incorrect type of i2c address
The i2c address is unsigned according to the dt-bindings.
Fix sparse issue (-Wtypesign):
drivers/staging/nvec/nvec.c:781:35: warning: incorrect type in argument 3 (different signedness)
drivers/staging/nvec/nvec.c:781:35: expected unsigned int [usertype] *out_value
drivers/staging/nvec/nvec.c:781:35: got int *<noident>
Signed-off-by: Franck Demathieu <fdemathieu@gmail.com> Acked-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Compiling the fsl-mc bus driver will yield a couple of static analysis
errors:
warning: symbol 'fsl_mc_msi_domain_alloc_irqs' was not declared
warning: symbol 'fsl_mc_msi_domain_free_irqs' was not declared.
warning: symbol 'its_fsl_mc_msi_init' was not declared.
warning: symbol 'its_fsl_mc_msi_cleanup' was not declared.
Since these are properly declared, but the header is not included, add
it in the source files. This way the symbol is properly exported.
The struct 'ni_private' holds the variable 'serial_number' which post
assignment is never used. Remove the variable and code pertaining to
obtaining its value.
As a side note, this also fixes the following sparse error:
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: warning: incorrect type in assignment (different base types)
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: expected restricted __be32 [usertype] serial_number
drivers/staging/comedi/drivers//ni_pcimio.c:1229:32: got unsigned int
simran singhal [Sat, 11 Feb 2017 20:53:15 +0000 (02:23 +0530)]
staging: rtl8192u: Removing true and false comparison
Remove comparison to true and false in if statement.
Problem found usingcheckpatch.pl.
CHECK: Using comparison to true is error prone
CHECK: Using comparison to false is error prone
simran singhal [Sat, 11 Feb 2017 20:49:21 +0000 (02:19 +0530)]
staging: rtl8192u: Replace explicit NULL comparisons with !
This patch replace explicit NULL comparison with ! or unmark operator to
simplify code.
Reported by checkpatch.pl for comparison to NULL could be
written "!XXX" or "XXX".
Larry Finger [Sat, 11 Feb 2017 03:30:28 +0000 (21:30 -0600)]
staging: r8712u: Fix Sparse endian warning in rtl871x_recv.c
Sparse reports the following:
CHECK drivers/staging/rtl8712/rtl871x_recv.c
drivers/staging/rtl8712/rtl871x_recv.c:657:21: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8712/rtl871x_recv.c:657:21: expected unsigned short [unsigned] [assigned] [usertype] len
drivers/staging/rtl8712/rtl871x_recv.c:657:21: got restricted __be16 [usertype] <noident>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Sat, 11 Feb 2017 03:30:26 +0000 (21:30 -0600)]
staging: r8712u: Fix macros used to read/write the TX/RX descriptors
Although the driver works on big-endian hardware, Sparse generates a lot
of warnings. Many of these are the result of incorrect coding of these
macros.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/wlan-ng/p80211conv.c:132:25: warning: cast to restricted __be16
drivers/staging/wlan-ng/p80211conv.c:132:25: warning: cast to restricted __be16
drivers/staging/wlan-ng/p80211conv.c:132:25: warning: cast to restricted __be16
drivers/staging/wlan-ng/p80211conv.c:132:25: warning: cast to restricted __be16
drivers/staging/wlan-ng/p80211conv.c:154:38: warning: incorrect type in assignment (different base types)
drivers/staging/wlan-ng/p80211conv.c:154:38: expected unsigned short [unsigned] [usertype] type
drivers/staging/wlan-ng/p80211conv.c:154:38: got restricted __be16 [usertype] <noident>
drivers/staging/wlan-ng/p80211conv.c:390:42: warning: cast to restricted __le16
drivers/staging/wlan-ng/p80211conv.c:413:29: warning: incorrect type in assignment (different base types)
drivers/staging/wlan-ng/p80211conv.c:413:29: expected unsigned short [unsigned] [usertype] type
drivers/staging/wlan-ng/p80211conv.c:413:29: got restricted __be16 [usertype] <noident>
drivers/staging/wlan-ng/p80211conv.c:481:29: warning: incorrect type in assignment (different base types)
drivers/staging/wlan-ng/p80211conv.c:481:29: expected unsigned short [unsigned] [usertype] type
drivers/staging/wlan-ng/p80211conv.c:481:29: got restricted __be16 [usertype] <noident>
Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
William Blough [Sun, 12 Feb 2017 10:05:31 +0000 (05:05 -0500)]
staging: lustre: lnet: fix type warning in lib-socket.c
The local socket address is defined as a __be32 value. However, if the
local ip address is not given, then the constant INADDR_ANY is used.
This patch converts INADDR_ANY to __be32 for type consistency.
Fixes the following sparse warnings:
drivers/staging/lustre/lnet/lnet/lib-socket.c:396:41: warning:
incorrect type in assignment (different base types)
drivers/staging/lustre/lnet/lnet/lib-socket.c:397:56: warning:
restricted __be32 degrades to integer
Signed-off-by: William Blough <devel@blough.us> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Sat, 11 Feb 2017 17:12:38 +0000 (12:12 -0500)]
staging: lustre: llite: root inode checking for migration
Do not migrate root inode.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7577
Reviewed-on: http://review.whamcloud.com/17669 Reviewed-by: Lai Siyao <lai.siyao@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wang di [Sat, 11 Feb 2017 17:12:37 +0000 (12:12 -0500)]
staging: lustre: llite: check request != NULL in ll_migrate
Check if the request is NULL, before retrieve reply body
from the request.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7396
Reviewed-on: http://review.whamcloud.com/17079 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'iio-fixes-for-4.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First set of IIO fixes for the 4.11 cycle. Regression fixes from 4.10.
These are fixes that came in just to late for the 4.10 cycle.
Two drivers made an accidental assumption of structure arrangement for
struct iio_dev that are no longer true. It was a typo in the first place
that happened to work until some elements were added to the structure.
* mpl3115
- don't rely on structure field ordering
* mpl115
- don't rely on structure field ordering.
Peter Rosin [Wed, 1 Feb 2017 20:40:57 +0000 (21:40 +0100)]
iio: pressure: mpl115: do not rely on structure field ordering
Fixes a regression triggered by a change in the layout of
struct iio_chan_spec, but the real bug is in the driver which assumed
a specific structure layout in the first place. Hint: the three bits were
not OR:ed together as implied by the indentation prior to this patch,
there was a comma between the first two, which accidentally moved the
..._SCALE and ..._OFFSET bits to the next structure field. That field
was .info_mask_shared_by_type before the _available attributes was added
by commit 51239600074b ("iio:core: add a callback to allow drivers to
provide _available attributes") and .info_mask_separate_available
afterwards, and the regression happened.
info_mask_shared_by_type is actually a better choice than the originally
intended info_mask_separate for the ..._SCALE and ..._OFFSET bits since
a constant is returned from mpl115_read_raw for the scale/offset. Using
info_mask_shared_by_type also preserves the behavior from before the
regression and is therefore less likely to cause other interesting side
effects.
The above mentioned regression causes unintended sysfs attibutes to
show up that are not backed by code, in turn causing a NULL pointer
defererence to happen on access.
Fixes: 3017d90e8931 ("iio: Add Freescale MPL115A2 pressure / temperature sensor driver") Fixes: 51239600074b ("iio:core: add a callback to allow drivers to provide _available attributes") Signed-off-by: Peter Rosin <peda@axentia.se> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Peter Rosin [Wed, 1 Feb 2017 20:40:56 +0000 (21:40 +0100)]
iio: pressure: mpl3115: do not rely on structure field ordering
Fixes a regression triggered by a change in the layout of
struct iio_chan_spec, but the real bug is in the driver which assumed
a specific structure layout in the first place. Hint: the two bits were
not OR:ed together as implied by the indentation prior to this patch,
there was a comma between them, which accidentally moved the ..._SCALE
bit to the next structure field. That field was .info_mask_shared_by_type
before the _available attributes was added by commit 51239600074b
("iio:core: add a callback to allow drivers to provide _available
attributes") and .info_mask_separate_available afterwards, and the
regression happened.
info_mask_shared_by_type is actually a better choice than the originally
intended info_mask_separate for the ..._SCALE bit since a constant is
returned from mpl3115_read_raw for the scale. Using
info_mask_shared_by_type also preserves the behavior from before the
regression and is therefore less likely to cause other interesting side
effects.
The above mentioned regression causes an unintended sysfs attibute to
show up that is not backed by code, in turn causing the following NULL
pointer defererence to happen on access.
Fixes: cc26ad455f57 ("iio: Add Freescale MPL3115A2 pressure / temperature sensor driver") Fixes: 51239600074b ("iio:core: add a callback to allow drivers to provide _available attributes") Reported-by: Ken Lin <ken.lin@advantech.com> Tested-by: Ken Lin <ken.lin@advantech.com> Signed-off-by: Peter Rosin <peda@axentia.se> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Laurentiu Tudor [Tue, 7 Feb 2017 15:43:53 +0000 (09:43 -0600)]
staging: fsl-mc: dprc: drop unused APIs
Leave only APIs that area actually used in the bus driver.
The patch is mostly mechanical, with a couple exceptions:
- getters/setters were not removed even if only one of
them is being used
- versioning API was also left in place
They will be added back on an as-needed basis.
Laurentiu Tudor [Tue, 7 Feb 2017 15:43:51 +0000 (09:43 -0600)]
staging: fsl-mc: dpbp: drop unused APIs
Leave only APIs that will be used in upcomming drivers.
The patch is mostly mechanical, with a couple exceptions:
- getters/setters were not removed even if only one of
them is being used
- versioning API was also left in place
They will be added back on an as-needed basis.
projects / karo-tx-linux.git / log