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plan9.ini(8): isa uarts

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cinap_lenrek 2013-01-13 11:04:24 +01:00
parent 80146b0303
commit bad3007bd6
1 changed files with 10 additions and 8 deletions
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18
sys/man/8/plan9.ini
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@ -453,7 +453,7 @@ The defaults are
.EX
port=0x220 irq=7 dma=5
.EE
.SS Uarts
.SS UARTS
Plan 9 automatically configures COM1 and COM2, if found,
as
.B eia0
@ -470,15 +470,17 @@ eia\fIX\fP=disabled
.LP
This is typically done in order to reuse the IRQ for
another device.
.P
.PP
Additional i8250 (ISA) uarts (uart2 to uart6) can be
configured using:
.IP
.EX
uart\fIX\fP=type=isa port=\fIport\fP irq=\fIirq
.EE
.PP
Plan 9 used to support various serial concentrators,
including the TTC 8 serial line card and various models
in the Star Gate Avanstar series of intelligent serial boards.
These are no longer supported; the much simpler
Perle PCI-Fast4, PCI-Fast8, and PCI-Fast16 controllers
have taken their places.
These latter cards are automatically detected
and need no configuration lines.
are automatically detected and need no configuration lines.
.PP
The line
.B serial=type=com