Replace incorrect NULL pointer checks on button_ctrl and led_ctrl with
string emptiness checks, since these are fixed-size character arrays and
never NULL.
Signed-off-by: Javier Viguera <javier.viguera@digi.com>
From the user point of view the the main change is the addition of function
ldx_gpio_request_by_controller() which selects the gpio to use using following
arguments:
- controller: The controller name or alias of the GPIO to request.
- line: The line number of the GPIO to request.
- request_mode argument has been removed since that argument only has
sense for sysfs related functions as it controls the way the line is
exported and unexported.
The configuration file entries change to following format:
- USER_LED = mca-gpio,12
- USER_BUTTON = mca-gpio,10
Also improved argument parsing and help
https://jira.digi.com/browse/DEL-6425
Signed-off-by: Hector Bujanda hector.bujanda@digi.com
Javier Viguera
Hector Bujanda
Francisco Gil