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Do not use hardware flow control for the moment. There are some issues

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with it that need to be understood better before they can be resolved.
This takes time and time is already in short supply.

Reported & tested by: glebius@
This commit is contained in:
Marcel Moolenaar 2004-08-06 15:51:31 +00:00
parent 44fe3c1ff0
commit dc70e792a6
1 changed files with 8 additions and 0 deletions
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8
sys/dev/uart/uart_dev_ns8250.c
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@ -700,11 +700,19 @@ ns8250_bus_probe(struct uart_softc *sc)
*/
sc->sc_txfifosz = 16;
#if 0
/*
* XXX there are some issues related to hardware flow control and
* it's likely that uart(4) is the cause. This basicly needs more
* investigation, but we avoid using for hardware flow control
* until then.
*/
/* 16650s or higher have automatic flow control. */
if (sc->sc_rxfifosz > 16) {
sc->sc_hwiflow = 1;
sc->sc_hwoflow = 1;
}
#endif
return (0);
}