[ale] interrupts in linux??

Christopher Bergeron christopher at bergeron.com
Sat Dec 28 18:23:52 EST 2002


Can any hardware guru's tell me if it's okay to share an interrupt in 
linux?  I remember back in the DOS/Win days that you couldn't have a 
device on the same interrupt (serial ports, etc)...  but that was back 
before PCI, PNP, etc...  I've got 3 devices on the same interrupt as 
follows:
[root at proto1 root]$ lspci -v

(edited for brevity)

00:0d.0 Network controller: Harris Semiconductor Prism 2.5 Wavelan 
chipset (rev 01)
        Subsystem: Unknown device 1737:3874
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at d8008000 (32-bit, prefetchable) [size=4K]
        Capabilities: [dc] Power Management version 2

00:11.0 Multimedia audio controller: Yamaha Corporation YMF-744B [DS-1S 
Audio Controller] (rev 02)
        Subsystem: Yamaha Corporation DS-XG PCI Audio CODEC
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at d8000000 (32-bit, non-prefetchable) [size=32K]
        I/O ports at d000 [size=64]
        I/O ports at d400 [size=4]
        Capabilities: [50] Power Management version 1

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP 
(rev 04) (prog-if 00 [VGA])
        Subsystem: Matrox Graphics, Inc. Millennium G400 MAX/Dual Head 32Mb
        Flags: bus master, medium devsel, latency 32, IRQ 11
        Memory at d2000000 (32-bit, prefetchable) [size=32M]
        Memory at d4000000 (32-bit, non-prefetchable) [size=16K]
        Memory at d5000000 (32-bit, non-prefetchable) [size=8M]
        Expansion ROM at <unassigned> [disabled] [size=64K]
        Capabilities: [dc] Power Management version 2
        Capabilities: [f0] AGP version 2.0


Is this okay?  Or do I have a problem here?  

Thanks in advance for replies...
-CB


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