Hi list!, first of all I'm not subscrived to the list but would be great 
if you CC me the answers for this mail.
I write because a long time ago I detected that just adding a new USB ID 
to the USB2VGA driver it can work with a new adapter. I contacted the 
maintainer as appeared in the MAINTAINERS list;

SIS FRAMEBUFFER DRIVER
P:      Thomas Winischhofer
M:      thomas@winischhofer.net
W:      http://www.winischhofer.net/linuxsisvga.shtml
S:      Maintained

SIS USB2VGA DRIVER
P:      Thomas Winischhofer
M:      thomas@winischhofer.net
W:      http://www.winischhofer.at/linuxsisusbvga.shtml
S:      Maintained

He didn't answered nor added the line, and his web seems down.
So it would be great if somebody could do this for him.
I send the patch...

Cheers,

Albert