Some small A780 progress

I've continued my work on porting the ts07.10 from Motorola's mux_cli to 2.6.x. It now compiles, although I have no idea whether it actually works as expected.

Since Linux 2.5/2.6 has undergone quite some sophisticated changes in both scheduling/context area (no more struct task_queue) as well as the tty layer (dynamically allocated and managed flip buffers, etc), the task has been a bit more challenging than the usual copy+paste+minor_fixup task.

I'll also be releasing the -ezx6 kernel soon (2.6.17 based) in the next couple of days, where I plan to merge mickey's various driver bits (LED, backlight, keypad fixes) and the above-mentioned mux_cli.

Last librfid ISO 14443-4 chaining bug eliminated

Ok, I finally found the [hopefully] last bug of librfid's ISO 14443-4 PCD side tx side chaining bug. It only occurred in combination with WTX reception.

I also tested CID (card-id) support for multi-activation. If anyone has ever seen a 14443-4 PICC that actually offers NAD (node address) support, please do let me know (samples even more welcome).

To my surprise I discovered, that higher baudrates are actually already negotiated between PCD (reader) and PICC (transponder). Thought there was some practical problem, but it actually worked all the time.