diff options
Diffstat (limited to 'commands/gpio.c')
| -rw-r--r-- | commands/gpio.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/commands/gpio.c b/commands/gpio.c index 4f2d93ee7d..08ecc152d9 100644 --- a/commands/gpio.c +++ b/commands/gpio.c @@ -107,65 +107,3 @@ BAREBOX_CMD_START(gpio_direction_output) BAREBOX_CMD_OPTS("GPIO VALUE") BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP) BAREBOX_CMD_END - -/** - * @page gpio_for_users GPIO Handling - -@section regular_gpio General usage information - -These commands are available if the symbol @b CONFIG_GENERIC_GPIO and @b -CONFIG_CMD_GPIO are enabled in Kconfig. - -@note All gpio related commands take a number to identify the pad. This -number is architecture dependent and may not directly correlate with the -pad numbers. Due to this, it is also possible that the numbers changes -between @b barebox releases. - -@section gpio_dir_out Use Pad as GPIO Output -@verbatim -# gpio_direction_output <gpio_no> <initial_value> -@endverbatim -- gpio_no: Architecture dependend GPIO number -- initial_value: Output value - -<p> To avoid glitches on the pad the routines will first set up the -pad's value and afterwards switch the pad to output (if the silicon is -able to do so). If the pad is already configured in non-GPIO mode (if -available), this command may silently fail. </p> - -@section gpio_dir_in Use Pad as GPIO Input -@verbatim -# gpio_direction_input <gpio_no> -@endverbatim -- gpio_no: Architecture dependent GPIO number - -<p> If the pad is already configured in non-GPIO mode (if available), -this command may silently fail. </p> - -@section gpio_get_value Read Input Value from GPIO Pin -@verbatim -# gpio_get_value <gpio_no> -@endverbatim - -<p> Reads the current value of a GPIO pin and return the value as a -shell return code. There is no visible output on stdout. You can check -the return value by using "echo $?". </p> - -<p> A return code other than '0' or '1' specifies an error code. </p> - -<p> If the pad is not configured in GPIO mode, this command may silently -fail and return garbage. </p> - -@section gpio_set_value Set Output Value on GPIO Pin -@verbatim -# gpio_set_value <gpio_no> <value> -@endverbatim -- gpio_no: Architecture dependent GPIO number -- value: Output value - -<p> Set a new output value on pad with GPIO number \<gpio_no>. </p> - -<p> If the pad is not configured in GPIO-mode, this command may silently -fail. </p> - -*/ |