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CVS commit: [netbsd-2-0] src/sys/dev/ic



Module Name:    src
Committed By:   he
Date:           Mon Jul  5 21:57:45 UTC 2004

Modified Files:
        src/sys/dev/ic [netbsd-2-0]: com.c

Log Message:
Pull up revisions 1.228-1.230 (requested by mycroft in ticket #603):
  Incorporate 4 changes:
   o At high speed, set the FIFO trigger to a higher
     value to reduce interrupt load.  Fixes PR#15448.
   o Handle the case of IIR=RXRDY and LSR=!LSR_RCV_MASK
     differently, to avoid a hang with some chips.  Fixes
     PR#21184, and possibly PR#10974 and PR#8248.
   o Remove the extra wait at the end of com_common_putc(),
     after writing a character out, so that we get another
     TXRDY interrupt.  This prevents stalls when normal
     output and kernel output are mixed.  Fixes PR#4263.
   o Do not ``preload'' the TX FIFO; wait for a TXRDY
     interrupt to come in after enabling it.


To generate a diff of this commit:
cvs rdiff -r1.224.2.1 -r1.224.2.2 src/sys/dev/ic/com.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.




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