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path: root/sys/dev/gpio/gpio.c (follow)
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* Let gpio_detach() do something useful.grange2004-11-231-2/+14
| | | | Tested by reyk@ on gpio@ath.
* added detach function to support hotpluggable gpios.reyk2004-11-221-2/+10
| | | | ok grange@
* Tweak in comment.grange2004-09-151-2/+2
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* A framework for supporting various General Purpose Input/Output (GPIO)grange2004-06-031-0/+241
devices. Such devices provide a set of pins that you can use to connect for example leds to it. The pins can be accessed either from userland through the /dev/gpio* device files or from the kernel drivers. The latter is necessary for implementing timing-sensitive things like i2c or 1-wire master controller. ok deraadt@