On Thu, 2005-04-14 at 18:46 -0400, abonilla wrote: > On Thu, 14 Apr 2005 17:15:16 -0400, Lee Revell wrote > > On Thu, 2005-04-14 at 16:58 -0400, Shawn Starr wrote: > > > We just need to figure > > > out to get the specs from IBM > > > > Best bet is probably reverse engineering it... > > Lee, > > I know this is far from easy... but, What do we need to do this? I haven't > seen such a cooler feature in a Thinkpad like the HDAPS. (Well, maybe the > fingerprint reader) But, how can we / I help, if this is ever done? >
Please see: http://dxr3.sourceforge.net/re.html I have discovered several previously unknown emu10k1 hardware features using this procedure to reverse engineer the Windows drivers, including a per channel half loop interrupt, and added support to the Linux driver for some of them. It may be much easier to find the read and write register subroutines than in the above guide. The Windows driver I was working with had exactly one subroutine that used the inb, inl, inw, outb, outw, outl instructions, so it was trivial to set breakpoints to log all the port I/O. I later found it was even easier, the version of SoftIce I was using allows you to set I/O breakpoints, so all you need to start logging the register activity is the port. I had a little trouble loading the IDA symbols into SoftICE at first, just because the first few scripts I found on the net didn't work. Some devices use memory mapped IO, I have no idea how you would RE these. Maybe someone else has some pointers? Lee - 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/