• Antonio Borneo's avatar
    drivers/bcm2835gpio: fix usage messages · 84ca4995
    Antonio Borneo authored
    The notation "(tck tms tdi tdo)* " is incorrect, because it means the
    quadruple of gpio can be repeated on the command-line.
    The correct syntax of the command requires instead to provide either
    all the four gpio numbers (in order to set the values) or to pass an
    empty command-line (to dump the values previously set).
    
    Change the .usage field to "[tck tms tdi tdo]".
    Change similarly the corresponding .usage field for SWD command.
    Add the .usage field for the commands that individually set each gpio
    or gpio property.
    Dump the previously set values when commands bcm2835gpio_speed_coeffs
    or bcm2835gpio_peripheral_base are executed with empty command-line.
    
    Change-Id: Ie45d8268c1de331aded0bb52d5e6b8f0e8766a5b
    Signed-off-by: default avatarAntonio Borneo <borneo.antonio@gmail.com>
    Reviewed-on: http://openocd.zylin.com/5019Reviewed-by: default avatarTomas Vanek <vanekt@fbl.cz>
    Tested-by: jenkins
    84ca4995
bcm2835gpio.c 14.6 KB