uled (4)

Leading comments

Copyright (c) 2014 Kevin Lo
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other mat...

(The comments found at the beginning of the groff file "man4/uled.4freebsd".)

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.conf5:

uled_load="YES"

DESCRIPTION

The driver provides support for the Dream Cheeky WebMail Notifier device.

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 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

An -nosplit The driver was written by An Kevin Lo Aq Mt kevlo@FreeBSD.org .