Re: [MiNT] sleep() and wake() in device drivers

[Frank Naumann <fnaumann@freemint.de>]

Hello!

> There are actually a couple more points about which I am not sure...
> (ok, so I was wrong when I said I thought I had figured out most of it ;)
> - does the .xdd need to initialize any fields of the `struct tty'
>  whose pointer it stores in f->devinfo and the dev_descr struct?

No.

> - the tty devices in the kernel seem to do their `normal' io  in units of 4
>  bytes of which only the last is significant; is this true also for external
>  tty drivers? 

Yes.

>  It seems not to be true from what tests I have done, i.e. ser_write() reports 
>  that bytes is equal to the number which my little test program passes to 
>  write()

Which ser_write() do you mean?

Best you take a look on my serial drivers (uart, scc). They are tty
drivers.


Tschuess
   ...Frank

--
ATARI FALCON 040 // MILAN 060
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http://www.cs.uni-magdeburg.de/~fnaumann/
e-Mail: fnaumann@freemint.de