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Re: [Qemu-devel] Log I/O from host Parallel Port?
From: |
Vincent Palatin |
Subject: |
Re: [Qemu-devel] Log I/O from host Parallel Port? |
Date: |
Tue, 8 Aug 2006 11:54:16 +0200 |
User-agent: |
KMail/1.8.1 |
On Tuesday 08 August 2006 11:05, Steve Ellenoff wrote:
> Is there any easy way to log all I/O data reads & writes to/from the host
> parallel port, when using the -parallel /dev/parport0 option?
>
> My host is connected via parallel port to some custom hardware and I'd like
> to be able to diagnose why the hardware's not working, by seeing the data
> stream of the port.
Near the top of the file "hw/parallel.c", you can find the following line :
//#define DEBUG_PARALLEL
just uncomment it and rebuilt qemu, all parallel I/O will be written to
stdout. (or feel free to modify the printf traces)
--
Vincent