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uinput: make a note that the syspath we return is the input node

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And not the syspath for the /dev/input/eventX node

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2017-06-01 09:28:57 +10:00
parent b08a3c70e5
commit c6e11a0a80
1 changed files with 5 additions and 0 deletions
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libevdev/libevdev-uinput.h
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@ -186,10 +186,15 @@ int libevdev_uinput_get_fd(const struct libevdev_uinput *uinput_dev);
* ioctl not available, libevdev makes an educated guess. * ioctl not available, libevdev makes an educated guess.
* The UI_GET_SYSNAME ioctl is available since Linux 3.15. * The UI_GET_SYSNAME ioctl is available since Linux 3.15.
* *
* The syspath returned is the one of the input node itself
* (e.g. /sys/devices/virtual/input/input123), not the syspath of the device
* node returned with libevdev_uinput_get_devnode().
*
* @note This function may return NULL if UI_GET_SYSNAME is not available. * @note This function may return NULL if UI_GET_SYSNAME is not available.
* In that case, libevdev uses ctime and the device name to guess devices. * In that case, libevdev uses ctime and the device name to guess devices.
* To avoid false positives, wait at least wait at least 1.5s between * To avoid false positives, wait at least wait at least 1.5s between
* creating devices that have the same name. * creating devices that have the same name.
*
* @param uinput_dev A previously created uinput device. * @param uinput_dev A previously created uinput device.
* @return The syspath for this device, including the preceding /sys * @return The syspath for this device, including the preceding /sys
* *