Peter Grehan
332cda07c0
Complete polled-mode operation by using a callout if the device will be
...
used in polled-mode. The callout invokes uart_intr, which rearms the timeout.
Implemented for bhyve, but generically useful for e.g. embedded bringup
when the interrupt controller hasn't been setup, or if it's not deemed
worthy to wire an interrupt line from a serial port.
Submitted by: neel
Reviewed by: marcel
Obtained from: NetApp
MFC after: 3 weeks
2012-04-12 18:46:48 +00:00
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