2.1.119 FourPort serial interrupt probing broken

Harald Koenig (koenig@tat.physik.uni-tuebingen.de)
Thu, 3 Sep 1998 20:15:50 +0200

using 2.1.119 (haven't tried other 2.1.x versions) interrupt probing
for AST compatible FourPort card is broken (using serial.o module,
don't know if this is relevant).

no matter which oder I probe ports 4-7, cua4 and cua5 always
get irq=0 instead of irq=5:

cua0 at 0x03f8 (irq = 4) is a 16450
cua1 at 0x02f8 (irq = 3) is a 16450
cua2 at 0x03e8 (irq = 4) is a 16550A
cua3 at 0x02e8 (irq = 3) is a 16550A
==> cua4 at 0x01a0 (irq = 0) is a 16550A (Fourport)
==> cua5 at 0x01a8 (irq = 0) is a 16550A (Fourport)
cua6 at 0x01b0 (irq = 5) is a 16550A (Fourport)
cua7 at 0x01b8 (irq = 5) is a 16550A (Fourport)

(even if cua6 is probed first which will get irq=5 etc.).

what's wrong here? I'm using setserial version 2.12 (SuSE 5.3).

used kernel config options are:
CONFIG_SERIAL=m
CONFIG_SERIAL_EXTENDED=y
CONFIG_SERIAL_MANY_PORTS=y
CONFIG_SERIAL_SHARE_IRQ=y
CONFIG_SERIAL_DETECT_IRQ=y
CONFIG_SERIAL_MULTIPORT=y

Harald

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