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Add to error messages the error description by concatenating
output of strerror() function to error messages print out by
gpio-utils.c on IOCTL failures.
Rationalize error messages, while at there, making all of them
look the same.
Signed-off-by: Jacopo Mondi <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Add basic gpio operations. User could get/set gpio value for specific
line of gpiochip.
Reference "tools/gpio/gpio-hammer.c" or
"tools/testing/selftest/gpio/gpio-mockup-chardev.c" for how to use it.
Signed-off-by: Bamvor Jian Zhang <[email protected]>
Reviewed-by: Michael Welling <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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This creates GPIO tools under tools/gpio/* and adds a single
example program to list the GPIOs on a system. When proper
devices are created it provides this minimal output:
Cc: Johan Hovold <[email protected]>
Cc: Michael Welling <[email protected]>
Cc: Markus Pargmann <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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