NAME

udl — DisplayLink DL-120 / DL-160 USB display devices

SYNOPSIS

udl* at uhub?
wsdisplay* at udl?

DESCRIPTION

The udl driver supports USB display devices based on the DisplayLink DL-120 / DL-160 graphic chip.

HARDWARE

The following devices should work:

FILES

The device can process compressed data (Huffman pixel difference method) to reduce the USB payload. To generate the compressed data, the driver needs to load a Huffman table, which is stored in the following binary file:

If the Huffman table can't be loaded, the driver will fall back to uncompressed mode.

SEE ALSO

intro(4), usb(4), wscons(4), wsdisplay(4)

HISTORY

The udl driver first appeared in OpenBSD 4.6.

AUTHORS

Marcus Glocker <mglocker@openbsd.org>