Messages in this thread | | | Date | Sat, 25 Jun 2005 13:31:46 +0200 | From | Vojtech Pavlik <> | Subject | Re: [ltp] IBM HDAPS Someone interested? (Accelerometer) |
| |
On Sat, Jun 25, 2005 at 07:17:33AM +0100, Paul Sladen wrote: > On Thu, 23 Jun 2005, Lee Revell wrote: > > Yup, it's just doing port IO. Get a kernel debugger for windows like > > softice and this will be trivial to RE. > > READ_PORT_USHORT / WRITE_PORT_UCHAR / READ_PORT_UCHAR > > There are 3 ports involved. The 0xed "non-existant delay port" and a pair > of ports that are through the Super-I/O / IDE. They are used in a > index+value setup similar to reading/writing the AT keyboard controller. > > >From what I remember, my conclusion was that these instructions were the > ones to park the heads and then lock the IDE bus. It's a couple of months > ago, but somewhere I have the simplified version of what it was doing...
It'd rather surprise me, since parking is usually achieved through sending a IDE command to the drive, which involves a rather different set of ports.
The ports you mention could possibly set the IDE channel to a 'reset' condition, although I doubt that, too.
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |