[OpenBSD]

Manual Page Search Parameters

UDL(4) Device Drivers Manual UDL(4)

NAME

udlDisplayLink 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:
Century Corp. Japan Plus One LCD-8000U
 
Century Corp. Japan Plus One LCD-4300U
 
DisplayLink USB to DVI
 
ForwardVideo EasyCAP008 USB to DVI
 
HP USB 2.0 Docking Station (FQ834)
 
HP USB Graphics Adapter (NL571)
 
IOGEAR USB 2.0 External DVI (GUC2020)
 
Koenig CMP-USBVGA10 and CMP-USBVGA11
 
Lenovo 45K5296 USB to DVI
 
Lenovo ThinkVision LT1421
 
Lilliput UM-70
 
Nanovision MiMo UM-710 and UM-740
 
Rextron VCUD60 USB to DVI
 
Samsung LD220
 
StarTech CONV-USB2DVI
 
Sunweit USB to DVI
 
Unitek Y-2240 USB to DVI
 
VideoHome NBdock1920
 

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:
/etc/firmware/udl_huffman
 
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)
September 18, 2012 OpenBSD-6.1