2004-06-29 16:32:56

by Justin Piszcz

[permalink] [raw]
Subject: Linux Kernel 2.6.7 Shows Two i8042's in /proc/interrupts?

I have APIC+ACPI+/dev/rtc enabled.

Curious though, why two i8042's?

$ uname -a
Linux 2.6.7 #2 SMP Tue Jun 22 18:19:08 EDT 2004 i686 unknown unknown GNU/Linux

$ gcc -v
Reading specs from
/a/app/gcc-3.4.0/bin/../lib/gcc/i686-pc-linux-gnu/3.4.0/specs
Configured with: ./configure --prefix=/app/gcc-3.4.0
Thread model: posix
gcc version 3.4.0

# cat /proc/interrupts
CPU0 CPU1
0: 30593638 0 IO-APIC-edge timer
1: 7228 0 IO-APIC-edge i8042
8: 130233 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-level acpi
12: 87258 0 IO-APIC-edge i8042
14: 38 0 IO-APIC-edge ide0
15: 72 0 IO-APIC-edge ide1
16: 3967335 0 IO-APIC-level nvidia
18: 3431241 0 IO-APIC-level eth0
20: 401933 0 IO-APIC-level ide2
21: 23832 0 IO-APIC-level EMU10K1
NMI: 0 0
LOC: 30594585 30594625
ERR: 0
MIS: 0


2004-06-29 16:59:11

by Dave Jones

[permalink] [raw]
Subject: Re: Linux Kernel 2.6.7 Shows Two i8042's in /proc/interrupts?

On Tue, Jun 29, 2004 at 12:32:49PM -0400, Justin Piszcz wrote:
> I have APIC+ACPI+/dev/rtc enabled.
>
> Curious though, why two i8042's?

keyboard & mouse. Try watch -n1 cat /proc/interrupts
and wiggle mouse / press keys.

Dave

2004-06-29 17:03:52

by FabF

[permalink] [raw]
Subject: Re: Linux Kernel 2.6.7 Shows Two i8042's in /proc/interrupts?


On Tue, 2004-06-29 at 18:32, Justin Piszcz wrote:
> I have APIC+ACPI+/dev/rtc enabled.
>
> Curious though, why two i8042's?
>
> $ uname -a
> Linux 2.6.7 #2 SMP Tue Jun 22 18:19:08 EDT 2004 i686 unknown unknown GNU/Linux
>
> $ gcc -v
> Reading specs from
> /a/app/gcc-3.4.0/bin/../lib/gcc/i686-pc-linux-gnu/3.4.0/specs
> Configured with: ./configure --prefix=/app/gcc-3.4.0
> Thread model: posix
> gcc version 3.4.0
>
> # cat /proc/interrupts
> CPU0 CPU1
> 0: 30593638 0 IO-APIC-edge timer
> 1: 7228 0 IO-APIC-edge i8042
> 8: 130233 0 IO-APIC-edge rtc
> 9: 0 0 IO-APIC-level acpi
> 12: 87258 0 IO-APIC-edge i8042
> 14: 38 0 IO-APIC-edge ide0
> 15: 72 0 IO-APIC-edge ide1
> 16: 3967335 0 IO-APIC-level nvidia
> 18: 3431241 0 IO-APIC-level eth0
> 20: 401933 0 IO-APIC-level ide2
> 21: 23832 0 IO-APIC-level EMU10K1
> NMI: 0 0
> LOC: 30594585 30594625
> ERR: 0
> MIS: 0

Same behaviour for a while Justin.I guess second one is used for mouse.

Regards,
FabF

>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>