1. 15 6月, 2016 1 次提交
    • L
      tools/gpio: add the gpio-hammer tool · 2a144dd0
      Linus Walleij 提交于
      The gpio-hammer is used from userspace as an example of how
      to retrieve a GPIO handle for one or several GPIO lines and
      hammer the outputs from low to high and back again. It will
      pulse the selected lines once per second for a specified
      number of times or indefinitely if no loop count is
      supplied.
      
      Example output:
      $ gpio-hammer -n gpiochip0 -o5 -o6 -o7
      Hammer lines [5, 6, 7] on gpiochip0, initial states: [1, 1, 1]
      [-] [5: 0, 6: 0, 7: 0]
      Tested-by: NMichael Welling <mwelling@ieee.org>
      Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      2a144dd0