Re: Re: What's up with the Embedded Controller driver? [was Re: [ACPI] patched sms-cm acpi/ec.c to 2.6.11.5]

Rich Townsend
2005-03-29T14:50:25Z

Yu, Luming wrote:
> You modified DSDT just remove some AML methods that related to EC.
> That means it just delete the problem.
> I believe if you think this is the regression, just because the changeset
> http://linux-acpi.bkbits.net:8080/26-latest-test/diffs/include/acpi/acconfig.h@1.55?nav=index.html|src/.|src/include|src/include/acpi|hist/include/acpi/acconfig.h
> make _those AML methods just run.
> So, this is NOT a regression problem.
>
> Please cat /proc/interrupts to me before accessing EC and after accessing EC.(using burst mode EC patch)
>

Hi Yuming --

I'm using your ec patch, plus a DSDT modified using my sbs-cm package
(which accesses the Smart Battery system through the EC address space
handler). Here's what happens to the interrupts when I access the battery:

rhdt@sto ~ $ cat /proc/interrupts
CPU0
0: 127116981 XT-PIC timer
1: 213426 XT-PIC i8042
2: 0 XT-PIC cascade
6: 171382 XT-PIC i915@pci:0000:00:02.0, uhci_hcd,
uhci_hcd, uhci_hcd, eth1
8: 8 XT-PIC rtc
9: 3305062 XT-PIC acpi
10: 1965890 XT-PIC Intel 82801DB-ICH4, yenta, ehci_hcd,
ipw2200
12: 4335843 XT-PIC i8042
14: 466033 XT-PIC ide0
15: 28 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
rhdt@sto ~ $ cat /proc/acpi/battery/BAT0/state
present: yes
capacity state: ok
charging state: charged
present rate: 0 mA
remaining capacity: 4081 mAh
present voltage: 16699 mV
rhdt@sto ~ $ cat /proc/interrupts
CPU0
0: 127131974 XT-PIC timer
1: 213488 XT-PIC i8042
2: 0 XT-PIC cascade
6: 171462 XT-PIC i915@pci:0000:00:02.0, uhci_hcd,
uhci_hcd, uhci_hcd, eth1
8: 8 XT-PIC rtc
9: 3305297 XT-PIC acpi
10: 1966133 XT-PIC Intel 82801DB-ICH4, yenta, ehci_hcd,
ipw2200
12: 4335843 XT-PIC i8042
14: 466065 XT-PIC ide0
15: 28 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0

Note that the battery access took over 5 seconds! And note, of course,
the big jump in the acpi interrupt count.

cheers,

Rich

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