linux-toradex.git/drivers/iio/industrialio-core.c, branch v3.10.80

iio:core drop info_mask from struct iio_info

2013-03-17T19:49:44+00:00

This has been replaced by the pair of masks info_mask_separate
and info_mask_shared_by_type.  Other variants may follow.

Signed-off-by: Jonathan Cameron 
Acked-by: Lars-Peter Clausen

iio: Add broken out info_mask fields for shared_by_type and separate

2013-03-17T19:49:09+00:00

This simplifies the code, removes an extensive layer of 'helper' macros
and gives us twice as much room to play with in these masks before we
have any need to be clever.

Signed-off-by: Jonathan Cameron 
Acked-by: Lars-Peter Clausen

iio: Add OF support

2013-03-16T10:17:59+00:00

Provide bindings and parse OF data during initialization.

Signed-off-by: Guenter Roeck 
Reviewed-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Factor out fixed point number parsing into its own function

2012-11-20T21:26:39+00:00

Factor out the code for parsing fixed point numbers into its own function and
make this function globally available. This allows us to reuse the code to parse
fixed point numbers in individual IIO drivers.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Add pressure channel type

2012-11-20T21:26:38+00:00

This patch adds support for a new IIO channel type for pressure measurements.
This can for example be used for barometric pressure sensors.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

staging:iio: Add support for multiple buffers

2012-11-10T10:17:21+00:00

Route all buffer writes through the demux.
Addition or removal of a buffer results in tear down and
setup of all the buffers for a given device.

Signed-off-by: Jonathan Cameron 
Tested-by: srinivas pandruvada

iio: Accept a leading '+' sign when parsing fixed point numbers

2012-11-02T09:43:48+00:00

If we encounter a leading '+' sign just skip over it.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Reject trailing garbage when parsing fixed point numbers

2012-11-02T09:43:48+00:00

When parsing a fixed point number IIO stops parsing the string once it has
reached the last requested decimal place. This means that the remainder of the
string is silently accepted regardless, of whether it is part of a valid number
or not. This patch modifies the code to scan the whole string and only accept
valid numbers. Since fract_mult is 0 after the last decimal place any digit that
may follows won't affect the result.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Do not accept multiple '.' in fixed point numbers

2012-11-02T09:43:47+00:00

Currently when parsing a fix-point number we silently skip any additional '.'
found in the string.  E.g. '1.2.3.4' gets parsed as '1.234'. This patch
disallows this and returns an error if more than one '.' is encountered.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Add a logarithmic fractional value type

2012-10-19T17:46:51+00:00

For ADCs or DACs the denominator for fractional types often is a power of two.
In this case we can use a shift operation instead of the rather expensive 64 bit
division. This patch adds a new fractional type which expects the denominator to
be specified as the log2 of the actual denominator. E.g. for ADCs and DACs this
will usually be the number of significant bits.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron