commit acf50b3586
"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 <knaack.h@gmx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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 <jasaw@dius.com.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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 <irina.tirdea@intel.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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 <irina.tirdea@intel.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Make scale and offset optional by adding -ENOENT check as not all
drivers implement them.
Signed-off-by: Joo Aun Saw <jasaw@dius.com.au>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This patch indends to make some cleanup and send printf
error messages to stderr. The changes were performed with coccinelle
for failure messages and manual for other cases, such as wrong usage
messages.
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Calculation of the length of an array can be done with the ARRAY_SIZE
macro to make code more abstract and remove the associated
checkpatch.pl warning.
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Remove explicit NULL comparison and write it in its simpler form as
recommended by checkpatch.pl.
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Some sensors export data in an 8-bit format.
Add a single-byte case for the generic_buffer tool so that
these sensors' buffer data can be visualized.
Signed-off-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use more appropriate/common variable names:
* namepf instead of nameFile in iio_utils.c
* ret instead of retval in lsiio.c
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Mark strings, which are not supposed to be changed (basedir, filename,
value), as const in function parameters.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
In generic_buffer.c: sort program parameters alphabetically and provide
usage information
In lsiio.c: drop unused parameters
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
In build_channel_array(), count can be initialized already during variable
declaration.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
In iioutils_get_type() it is logically better fitting to have sysfsfp
assigned zero right after closing it.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Change the assignment of *is_signed in iioutils_get_type() to a one-liner,
as already done with *be.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Refactor the code in print_event() to reduce code duplication and better
reflect that the type is output unconditionally, as well as cascade the
dependency of the diff-channel. Saves a few lines of code, as well.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Linus Walleij
Joo Aun Saw
Irina Tirdea
Cristina Opriceana
Tiberiu Breana
Hartmut Knaack
Peter Meerwald