02. Some technical details on FL2000

USB info

FL2000 implements Basic Device Profile (BDP) of USB Audio/Video Devices, which does not seem to work properly.

List of interfaces and descriptors is available here. Data has some weird issues (unknown protocol number, wrong sizes for some descriptors, etc.) which probably is the root cause of impossibility to use FL2000 as AV device.

PLL & clock settings

FL2000 has a poorly documented PLL settings, standard FL2000 driver has some weird 'big_table' with zillions of parameters. Empirically decoded parameters can be fond here