From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Andrey Batyiev <batyiev@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: APIC misconfiguration
Date: Mon, 6 Oct 2008 20:50:07 +0400 [thread overview]
Message-ID: <20081006165007.GA7317@localhost> (raw)
In-Reply-To: <200810061923.09076.batyiev@gmail.com>
[Andrey Batyiev - Mon, Oct 06, 2008 at 07:23:08PM +0300]
| Hello everyone
|
| I'm trying to create touchscreen driver for Wibrain UMPC. I found
| out that device doesn't emit interrupts until I switch polarity
| field in IO_APIC_route_entry. To do this, I need to export
| ioapic_read_entry and ioapic_write_entry symbols from
| arch/x86/kernel/io_apic_{32,64}.c
| Is there any other (better) way to do this?
|
| Thanks,
| Andrey
|
Hi Andrey,
actually it's not a bug of APIC itself but rather misconfigured
device I think. Not sure thru which bus it does work (pci
i suppose) but I think you better are to fix it on more higher
level like in config space of this device. PCI guys could tell
you more about this area I believe.
- Cyrill -
next prev parent reply other threads:[~2008-10-06 16:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-06 16:23 APIC misconfiguration Andrey Batyiev
2008-10-06 16:50 ` Cyrill Gorcunov [this message]
2008-10-06 16:55 ` Andrey Batyiev
2008-10-06 17:17 ` Cyrill Gorcunov
2008-10-06 17:30 ` Andrey Batyiev
2008-10-06 17:54 ` Cyrill Gorcunov
2008-10-07 11:47 ` Matthew Garrett
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