On Sunday 04 November 2007 19:55:40 Erik Andrén wrote: > To make a long story short, I've hacked up a kernel module that dumps > the EC For acer_acpi, we have a Perl script that can do this from userspace (but it should run on any other machine, since there's nothing Acer specific about dumping the EC registers). http://aceracpi.googlecode.com/svn/trunk/acer_ec/acer_ec.pl ./acer_ec.pl regs (ACPI throws a few warnings in dmesg, because we're stepping on it's turf a bit here, but it's far simpler than having to write a kernel module just to get a few registers). > My questions to you ACPI and EC gurus are: > > 1. Is it possible that the EC is read-only from the OS perspective? >From the acer_acpi perspective, we've found that some EC registers are read-only (e.g. on some laptops, there is a register to read the status of the touchpad, but writes to it are ignored). I imagine this is defined at the hardware level though, not by the OS. > 3. Does anyone have a recommendation of programs to use for snooping I/O > accesses in windows? I did try playing around with writing my own simple application to access the I/O ports, and then dump the EC data - unfortunately, I/O port programming in Windows is "painful", to say the least. -Carlos -- E-Mail: carlos@xxxxxxxxxxxxxxxxxxx Web: strangeworlds.co.uk GPG Key ID: 0x23EE722D - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
