linux-stable.git/tools/iio, branch linux-4.5.y

iio: generic_buffer: be helpful about enabling channels

2015-08-16T09:51:26+00:00

Currently if generic_buffer is invoked without first enabling any
channels in scan_elements/*_en, it will fail unable to enable the
buffer because bytes_per_datum inside the kernel will be zero if
no channels are available.

It is implied that the user of the program should enable channels
manually or with a script before executing generic_buffer.

Be more helpful by stopping execution if no enabled channels can
be found, and print a helptext that will tell you what is wrong
and what needs to be done.

Signed-off-by: Linus Walleij 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

iio: event_monitor: report unsupported events

2015-08-16T09:51:25+00:00

This makes the event monitor bail out with a helpful error
message if a device does not support events, as a related
fix to iio core now makes it return -ENODEV properly.

Signed-off-by: Linus Walleij 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

iio: lsiio: fix error code handling error

2015-08-12T18:26:22+00:00

commit acf50b3586f8d8a7530b905e111dda41876d38f4
"tools:iio:lsiio: add error handling"
introduced error handling of errors returned from
read_sysfs_string(), but with a simple if (retval),
missing the fact that these functions return a positive
value if the read was successful.

As a result lsiio regresses and does not show any
devices on my filesystem. Fix this by checking for
only negative error codes.

Cc: Hartmut Knaack 
Signed-off-by: Linus Walleij 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

tools: iio: remove unnecessary double pointer

2015-08-08T18:54:00+00:00

Remove unnecessary double pointer from channel sorting function.

Signed-off-by: Joo Aun Saw 
Signed-off-by: Jonathan Cameron

tools: iio: Set caller's ci_array pointer to NULL after free

2015-08-08T18:51:39+00:00

On error, caller's ci_array is freed and set to NULL to avoid
potential double free if some other user of this code is not
sufficiently careful. Counter is reset to zero for consistency.

Signed-off-by: Joo Aun Saw 
Signed-off-by: Jonathan Cameron

tools: iio: iio_utils: Make calc_digits static

2015-08-02T17:46:26+00:00

Signed-off-by: Joo Aun Saw 
Acked-by: Daniel Baluta 
Signed-off-by: Jonathan Cameron

tools: iio: iio_utils: remove unnecessary define guard

2015-08-02T17:45:12+00:00

Signed-off-by: Joo Aun Saw 
Acked-by: Daniel Baluta 
Signed-off-by: Jonathan Cameron

tools: iio: print error message when buffer enable fails

2015-08-02T17:39:27+00:00

Running generic_buffer without enabling any channel of the
sensor will fail without printing any error message.

Add an error message that indicates buffer enable failed.

Signed-off-by: Irina Tirdea 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

tools: iio: fix mask for 32 bit sensor data

2015-08-02T17:38:22+00:00

When the the sensor data uses 32 bits out of 32, generic_buffer prints
the value 0 for all data read.

In this case, the mask is shifted 32 bits, which is beyond the size of
an integer. This will lead to the mask always being 0. Before printing,
the mask is applied to the raw value, thus generating a final value of 0.

Fix the mask by shifting a 64 bit value instead of an integer.

Signed-off-by: Irina Tirdea 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

tools: iio: make scale and offset files optional

2015-07-23T19:45:50+00:00

Make scale and offset optional by adding -ENOENT check as not all
drivers implement them.

Signed-off-by: Joo Aun Saw 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron