/dev/uled0
blocking device node
uled4freebsd
Usb led driver
Usage
To compile this driver into the kernel, place the following lines into your kernel configuration file:
device uled device usb
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
uled_load="YES"
Overview
The uled driver provides support for Dream Cheeky WebMail Notifier and ThingM blink(1) notification LED.
Subsequently, the /dev/uled0 device can be used by userland applications.
Ioctls
The following ioctl(2) commands can be performed on /dev/uled0, which are defined in ⟨dev/usb/uled_ioctl.h⟩:
- ULED_GET_COLOR
-
The command returns LED colors with values for RGB. This ioctl(2) takes the following structure:
struct uled_color { uint8_t red; uint8_t green; uint8_t blue; }; - ULED_SET_COLOR
-
The command sets LED colors with values for RGB. It uses the same structure as above.
Files
Releases
5 releases since Debian 9 (Stretch); the text changed 2 times.