8xx SMC question

[Robin Gilks]

Greetings

Using the uart driver from a snapshot of the Denx kernel of about 18 
months ago (2.4.22 or thereabouts), I'm trying to sort out the reception 
of break. The only information I can find that may help identify the 
code is:
BK Id: SCCS/s.uart.c 1.30 11/19/02 11:58:41 trini

The problem I have is that a break doesn't seem to be reported until 
another character comes along - this means for example that if I get 2 
breaks, only one is reported up to the tty layer (I think - maybe a 
queuing problem at tty level?). The new character is received AFTER the 
break (so ordering is not a problem).

Knowing that there is no really 'standard' SMC driver for 2.4 series 
kernels I'm not sure if this scenario will ring any bells. If there is a 
bit I've missed in the interrupt mask (or whatever) that prevents the 
break being seen, any ideas on what it might be? ie. should I be looking 
at arch/ppc/8xx_io/uart.c or at drivers/char/n_tty.c !!

-- 
Robin Gilks
Senior Design Engineer          Phone: (+64)(3) 357 1569
Tait Electronics                Fax  :  (+64)(3) 359 4632
PO Box 1645 Christchurch        Email : robin.gilks at tait.co.nz
New Zealand

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