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54a19b4d3f
There are some ABI documents that, while they don't generate any warnings, they have issues when parsed by get_abi.pl script on its output result. Address them, in order to provide a clean output. Reviewed-by: Tom Rix <trix@redhat.com> # for fpga-manager Reviewed-By: Kajol Jain<kjain@linux.ibm.com> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7 Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for IIO Acked-by: Oded Gabbay <oded.gabbay@gmail.com> # for Habanalabs Acked-by: Vaibhav Jain <vaibhav@linux.ibm.com> # for sysfs-bus-papr-pmem Acked-by: Cezary Rojewski <cezary.rojewski@intel.com> # for catpt Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Ilya Dryomov <idryomov@gmail.com> # for rbd Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
27 lines
666 B
Text
27 lines
666 B
Text
What: /dev/gpiochip[0-9]+
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Date: November 2015
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KernelVersion: 4.4
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Contact: linux-gpio@vger.kernel.org
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Description:
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The character device files /dev/gpiochip* are the interface
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between GPIO chips and userspace.
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The ioctl(2)-based ABI is defined and documented in
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[include/uapi]<linux/gpio.h>.
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The following file operations are supported:
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open(2)
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Currently the only useful flags are O_RDWR.
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ioctl(2)
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Initiate various actions.
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See the inline documentation in [include/uapi]<linux/gpio.h>
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for descriptions of all ioctls.
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close(2)
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Stops and free up the I/O contexts that was associated
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with the file descriptor.
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Users: TBD
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