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* gpio: check request resultMike Frysinger2011-04-13-1/+4
| | | | | | Make sure the pin request passed before attempting to use it later on. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* gpio: generalize for all generic gpio providersMike Frysinger2011-04-13-0/+86
The Blackfin gpio command isn't terribly Blackfin-specific. So generalize the few pieces into two new optional helpers: name_to_gpio() - turn a string name into a GPIO # gpio_status() - display current pin bindings (think /proc/gpio) Once these pieces are pulled out, we can relocate the cmd_gpio.c into the common directory. Signed-off-by: Mike Frysinger <vapier@gentoo.org>