> Someone (whose name I accidently deleted) experienced a loss of 3.4 ms
> during a VC switch in his joystick driver.
> I don't think the loss of 3.4 ms is THAT important to the joystick driver.
> You trigger a new AD conversion and.. well you just read it back some
> time later. The program using the joystick should disable itself anyway
> if the console is switched away, so it really makes no difference.
3.4ms would be really *bad* for other operations too, e.g.:
one character at 38400 baud is 0.26 ms, so in 3.4ms one serial line
could receive ~13 characters! even with a 16550A uart with 16 byte FIFO
this might result in lost characters!
Harald
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Harald Koenig, \/\/\/\/\/\/\/\/\/
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koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^