2 Commits

Author	SHA1	Message	Date
Kent Gibson	5ca84d416e	Documentation: gpio: Clarify effect of active low flag on line values ... The documentation does not make sufficiently clear that the uAPI deals with logical line values, nor does it describe the influence of the active low flag on the mapping between physical and logical line values. Clarify the relationship between physical and logical line values and the effect of the active low flag for ioctls passing line values. Suggested-by: David C. Rankin <drankinatty@gmail.com> Signed-off-by: Kent Gibson <warthog618@gmail.com> Link: https://lore.kernel.org/r/20240610092157.9147-2-warthog618@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>	2024-06-12 14:02:54 +02:00
Kent Gibson	32a0a0da53	Documentation: gpio: add chardev userspace API documentation ... Add documentation for the GPIO character device userspace API. Added to the userspace-api book, but also provide a link from the admin-guide book, as historically the GPIO documentation has been there. Signed-off-by: Kent Gibson <warthog618@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>	2024-01-22 10:47:14 +01:00