Bruce Evans 33dc7e1b84 Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if ... no ports are active, provided there are no polled ports and no `LOSESOUTINTS' ports. Do a little more in the interrupt handler instead. This is a little less efficient if there are are many active ports but a little more efficient otherwise. Polled ports are ones with no irq specified (as before). `LOSESOUTINTS' ports are ones with 0x08 set in their config flags. Unless this flag is set, it will now take up to one second to recover from lost output interrupts, if any. Some 8250s and 16450s lose output interrupts. Improve output buffering: copy the clist buffer to 2 linear buffers if necessary and possible instead of to 1. Handle an arbitrary queue of buffers in the interrupt handler. Check for waking up sleepers after copying characters out of the clist buffer instead of before. Delay translation of TIOCM_DTR to MCR_DTR etc. so that the top level routines are more machine independent. Fix bogus device register in unused code.		1995-06-25 04:51:01 +00:00
..
alpha/include
amd64
compile
conf	Add an option to the psm driver to skip the parts of the probe which break	1995-06-22 10:56:56 +00:00
ddb
dev	Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if	1995-06-25 04:51:01 +00:00
fs
gnu
i386	Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if	1995-06-25 04:51:01 +00:00
isa	Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if	1995-06-25 04:51:01 +00:00
isofs/cd9660
kern	ttywait: convert EWOULDBLOCK to EIO, when t_timeout expired	1995-06-24 16:28:20 +00:00
libkern
miscfs
modules
msdosfs
net	Killed a couple lines of redundant code.	1995-06-21 10:13:23 +00:00
netccitt
netinet	Fix an error in the comparison direction of the ap->updating case of	1995-06-21 19:48:53 +00:00
netiso
netns
nfs
nfsclient
nfsserver
pci
powerpc/include
rpc
scsi
sys	Close out PR #507 (loading LM_MISC pseudo-lkms twice crashes system).	1995-06-17 05:02:30 +00:00
tools
ufs
vm
Makefile