On Tue, Mar 22, 2022 at 06:14:35PM +0100, Diego Rondini wrote:
As explained in commit 4af2a33ee5b9 ("cmd: gpio: Make `gpio input` return pin value again") the `gpio input` is used in scripts to obtain the value of a pin, despite the fact that CMD_RET_FAILURE is indistinguishable from a valid pin value. To be able to detect failures and properly use the value of a GPIO in scripts we introduce the `gpio read` command that sets the variable `name` to the value of the pin. Return code of the `gpio read` command can be used to check for CMD_RET_SUCCESS or CMD_RET_FAILURE.
Signed-off-by: Diego Rondini diego.rondini@kynetics.com
cmd/gpio.c | 24 ++++++++++++++++++++---- test/py/tests/test_gpio.py | 15 +++++++++++++++ 2 files changed, 35 insertions(+), 4 deletions(-)
Please rework this to add CONFIG_CMD_GPIO_READ, and enable it on sandbox as it causes a good bit of growth on a large number of platforms, thanks.