NAME

       uled — USB LED driver

SYNOPSIS

       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"

DESCRIPTION

       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

       /dev/uled0  blocking device node

SEE ALSO

       ohci(4), uhci(4), usb(4)

AUTHORS

       The uled driver was written by Kevin Lo <kevlo@FreeBSD.org>.

Debian                                           March 31, 2017                                          ULED(4)