[PATCH 3/4] gpiolib: make gpiolib command more verbose

[Alexander Aring]

Hi Sebastian,

On Sat, Nov 09, 2013 at 02:24:08PM +0100, Sebastian Hesselbarth wrote:
> This adds some more printf information to gpiolib command, like the
> gpiochip handling a specific gpio. Also, current direction and value
> of the gpio are printed, if the gpiochip provides the corresponding
> callbacks.
> 
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
> ---
> Cc: barebox at lists.infradead.org
> ---
>  drivers/gpio/gpiolib.c | 24 +++++++++++++++++++++---
>  1 file changed, 21 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index ca6e8ad..c12ebe6 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -228,16 +228,34 @@ static int do_gpiolib(int argc, char *argv[])
>  	int i;
>  
>  	printf("gpiolib: gpio lists\n");
> -	printf("%*crequested  label\n", 11, ' ');
>  
>  	for (i = 0; i < ARCH_NR_GPIOS; i++) {
>  		struct gpio_info *gi = &gpio_desc[i];
> +		int val = -1, dir = -1;
>  
>  		if (!gi->chip)
>  			continue;
>  
> -		printf("gpio %*d: %*s  %s\n", 4,
> -			i, 9, gi->requested ? "true" : "false",
> +		/* print chip information and header on first gpio */
> +		if (gi->chip->base == i) {
> +			printf("\ngpios %u-%u, chip %s:\n",
> +				gi->chip->base,
> +				gi->chip->base + gi->chip->ngpio,

I think this should be "gi->chip->base + gi->chip->ngpio - 1", because
we starting at zero on base.

- Alex