Commit Graph

220 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
e4c5bf8e3d Merge 'staging-next' to Linus's tree
This merges the staging-next tree to Linus's tree and resolves
some conflicts that were present due to changes in other trees that were
affected by files here.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-28 09:44:56 -07:00
Arnd Bergmann
6038f373a3 llseek: automatically add .llseek fop
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-15 15:53:27 +02:00
Michael Hennerich
2a28f6cb74 staging: iio: ad7476: fix !CONFIG_IIO_RING_BUFFER build issue reported by Randy Dunlap
Fix function function decalration
Enable CONFIG_IIO_RING_BUFFER for the ad7476 driver

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-14 12:09:23 -07:00
Michael Hennerich
1139df5353 staging: iio: adc: ad799x miscellaneous cleanups
-Simplify by using iio_alloc_pollfunc helper function
-Print in_scale in decimal format.
-Simplify ring pointer dereferences

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-12 08:59:32 -07:00
Michael Hennerich
668413e9e7 staging: iio: adc: ad7476 more list review feedback by Jonathan Cameron
Print in_scale in decimal format.
Kconfig list the names of the parts in full, to ease seraching.
Use st->spi in the call as it is only used the once.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-12 08:59:32 -07:00
Michael Hennerich
349282d82e staging: iio: adc: ad7476 new SPI ADC driver
New driver handling:
	AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495
SPI micropower and high speed 12-/10-/8-Bit ADCs

staging: iio: adc: ad7476 apply list review feedback by Jonathan Cameron

Changes since last RFC post V1:
	Mainly list review feedback by Jonathan Cameron

-Remove scan_attrs from chip info structure.
-Remove name from chip info structure, use new spi_device_id instead.
-Allow transfer buffers to live in their own cache lines, to avoid DMA/cache coherency issues.
-Move scan el code into the ring buffer file.
-Use helper function to alloc the pollfunc.
-Use regulator framework and get vref_mv from the regulator in case not specified by pdata.
-Devices with buit-in reference use vref from the chip info structure
-Don't error on missing platform_data

-Make vref_mv type unsigned short
-Print in_scale "Vref / 2^(bits)" if fractional.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-12 08:59:31 -07:00
Jonathan Cameron
e58537ccce staging: iio: update example application.
The application is now considerably more generic and should cope
with all devices in tree.  The process function will need to be
extended to handle other type values as needed.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:57 -07:00
Jonathan Cameron
1755b0ae17 staging: iio: adc add numbers to naming of all adc channels as needed to associate events with them.
Given event codes are associated by number not name, all adc channels
including those with names need to have numbers.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:56 -07:00
Jonathan Cameron
2f3cc667f7 staging: iio: events update documentation to match new abi.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:56 -07:00
Jonathan Cameron
f9f0d354cb staging: iio: light remove empty light.h file
We can put this back when there is something to put in it!

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:56 -07:00
Jonathan Cameron
45dd3b340b staging: iio: tsl2563 event attribute name updates
Patch also renames the two raw channels to add numbers
so that we know to which channel the event code applies.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:55 -07:00
Jonathan Cameron
d750e375c1 staging: iio: accel remove deprecated and misleading event macros.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:55 -07:00
Jonathan Cameron
fc5d0e4254 staging: iio: sca3000 event attribute name updates
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:54 -07:00
Jonathan Cameron
c33680c483 staging: iio: lis3l02dq event attribute renames
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:54 -07:00
Jonathan Cameron
4be2de46fb staging: iio: events move buffer codes so they do not clash with new scheme
We could blugeon these more into the scheme I guess, but does it make sense
to do so?

Also remove all remain vestiges of old scheme.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:53 -07:00
Jonathan Cameron
da1d8b68af staging: iio: tsl2563 move to new event numbering scheme and remove old definitions
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:53 -07:00
Jonathan Cameron
deb02fc574 staging: iio: accel remove old event codes
Signed-off-by: Joanthan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:52 -07:00
Jonathan Cameron
de9fe32afc staging: iio: sca3000 move to new event code scheme and add combined orientations
The combined orientations allow handling of typical motion and free fall
detectors to be handled as threshold events just applied to a number of
axes via boolean operations.  So freefall is when x, y and z magnitudes
are all below a threshold for a particular period.  Motion detectors
are typically whether x or y or z are above a particular value.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:52 -07:00
Jonathan Cameron
18e69a9904 staging: iio: lis3l02dq move to new event code scheme
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:52 -07:00
Jonathan Cameron
820e882a87 staging: iio: adc events update to new numbering system
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:51 -07:00
Jonathan Cameron
f4704d77fd staging: iio: events define macros for new event code system
These are step one of moving to a systematic numbering for event
codes.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-08 07:17:51 -07:00
Rhyland Klein
940428742e staging: iio: light: Adding driver for ISL29018 ALS
adding support for the ISL 29018 ambient light and proximity sensor.

Addressed comments from reviews by Jonathan Cameron and Joe Perches
  * Removed some excess dbg prints that only printed function name
  * Renamed some properties to make them more descriptive
  * Added a property to list available adc resolutions
  * Defined arrays for resolutions/ranges as static const
  * Change loops initialization to memset for extensibility.
    * used sizeof() instead of ARRAY_SIZE() to be safer
  * Added a property to list available adc ranges
  * Fixed warnings and property names.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 20:12:38 -07:00
Michael Hennerich
e968d09504 staging: iio: ring_generic: provide IIO_CONST_ATTR_SCAN_EL_TYPE_WITH_SHIFT
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:07:01 -07:00
Michael Hennerich
3ba2e4939d staging: iio: adc: ad799x drop in_precision in favor of new in_type
-drop in_precision in favor of new in_type -
This also fixes the bug from the scan elements move (as a side effect)
-add sign and storagebits to struct ad799x_chip_info
-properly mask the results based on ad799x_chip_info:bits

staging: iio: adc: ad799x misc fixed per iio list review

remove new line
remove storagebits from struct ad799x_chip_info
use defined storagebits value for in_type

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:07:01 -07:00
Jonathan Cameron
a7861ff082 staging: iio: max1363 fix bug due to scan_element directory move.
The device found passed to the attr functions is that of the ring
    buffer, not the the iio_dev so we need to bounce through one more
    hop to get the right address.

    Reported-by: Michael Hennerich <michael.hennerich@analog.com>
    Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:06:44 -07:00
Jonathan Cameron
7aa3baeb97 staging: iio: sca3000 fix bug due to scan_element directory move.
The device found passed to the attr functions is that of the ring
buffer, not the the iio_dev so we need to bounce through one more
hop to get the right address.

Reported-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:06:44 -07:00
Jonathan Cameron
0986452eb4 staging: iio: timestamp_en naming typo fix.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:06:44 -07:00
Michael Hennerich
ba6584946e staging: iio: adc: max1363: remove unused variable
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:06:18 -07:00
Michael Hennerich
d0a530441e staging: iio: iio_ring_rip_outer return immediately if rip_lots returns <= 0
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-07 10:06:18 -07:00
Michael Hennerich
aecac19179 staging: iio: adc: ad799x: Address iio list feedback
Address feedback from Shubhrajyoti Datta:
	Cast return value
Michael Hennerich:
	Use i2c_smbus_read_byte_data()
	Fix return value check

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-06 08:22:44 -07:00
Michael Hennerich
e1517c00da staging: iio: adc: max1363: prevent buffer overflow
ring->access.read_last() reads the entire datum from
the ring including padding and time stamp.

Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-06 08:21:28 -07:00
Michael Hennerich
858f1ccff1 staging: iio: adc: ad799x: prevent buffer overflow
ring->access.read_last() reads the entire datum from the ring including padding and time stamp.

Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-06 08:21:28 -07:00
Michael Hennerich
30b5309ae5 staging: iio: adc: Address mailing list feedback by Jonathan Cameron
Add missing new line
Fix typo

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-05 11:51:37 -07:00
Michael Hennerich
985dbe776b staging: iio: adc: Enable driver support for ad799x AD converters
Driver for ad7991, ad7995, ad7999, ad7992, ad7993, ad7994, ad7997 and
ad7998 multichannel ADC.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-05 11:51:13 -07:00
Phillip Kurtenbach
0abd242839 staging: iio: whitespace cleanup
Fixed whitespace coding style issues.

Signed-off-by: Phillip Kurtenbach <pkurtenbach@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-30 04:33:17 -07:00
Jonathan Cameron
10ba8ea9bd staging: iio: sysfs abi documentation. Add _type and _index attrs
Also remove no unused precision attr.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:44 -07:00
Jonathan Cameron
3215e31cc3 staging: iio: remove deprecated form of scan_el attribute naming.
This has been replaced by a separate _index attribute

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:44 -07:00
Jonathan Cameron
d16061bb67 staging: iio: sca3000 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:43 -07:00
Jonathan Cameron
77b3d3facf staging: iio: max1363 add _index attribute registration
Also fixes a missing NULL to terminate one of the attribute arrays.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:43 -07:00
Jonathan Cameron
67dd265d44 staging: iio: adis16400 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:43 -07:00
Jonathan Cameron
de9b493efb staging: iio: adis16350 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:43 -07:00
Jonathan Cameron
474437496a staging: iio: adis16300 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:42 -07:00
Jonathan Cameron
c045e44dfc staging: iio: adis16260 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:42 -07:00
Jonathan Cameron
6d2174f438 staging: iio: adis16240 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:42 -07:00
Jonathan Cameron
49624fa833 staging: iio: adis16209 add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:42 -07:00
Jonathan Cameron
13a091abb7 staging: iio: lis3l02dq add _index attribute registration
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:42 -07:00
Jonathan Cameron
fc89b38db0 staging: iio: amend macros for SCAN_EL creation to add separate index attr
As Manuel Stahl observed, putting data into the naming of an attribute
(beyond what it is for) breaks the one value per attribute rule (in spirit
at least).  Hence we introduce a separate _index attribute for each scan
element to tell userspace the ordering in output from the buffer.

This will generate a lot of sparse warnings as all drivers will have unused
iio_const_attrs created.  The rest of the set will clean these up.

The final patch will remove the old indexing method. It is not here so
as to maintain one or other interface for all devices as this set
progresses.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:41 -07:00
Jonathan Cameron
44f270de71 staging: iio: Remove unused bit_count from struct iio_scan_el
The job this was intended to do (never implemented) is now done
by explicit definition of _type attributes in all drivers

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:41 -07:00
Jonathan Cameron
5df2145c8c staging: iio: adis16400 add _type attributes for all scan elements
The bit depth of 14 for the supply adc on the datasheet is highly
suspicious.  Confirmation requested from Analog.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:41 -07:00
Jonathan Cameron
3b401a96d5 staging: iio: adis16350 add _type attributes for all scan elements
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-21 10:34:41 -07:00