Linas Vepstas wrote:
I've go a newbie x86 BIOS question: is there a BIOS function that
can be called to reset a PCI device? (By "reset a device" I mean
raise the #RST PCI signal line to electrical high for 1.5 seconds).
I know that BIOS does this during a soft reboot, but I was wondering
if there's a stand-alone function for doing this while the system is up
and running.
Unlikely - if you mean just resetting one PCI device, it's likely
electrically impossible on many, if not most machines as the RST lines
will be tied together on all slots.
The BIOS might possibly have the ability to issue a PCI bus reset
independent of resetting the CPU, chipset, etc. but I don't think
there's any standardized way to trigger this, even so.
In any case, I don't think - or at least would hope - that a PCI device
going so far into the weeds that it can't be recovered without a RST
would be a rare situation.
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from [email protected]
Home Page: http://www.roberthancock.com/
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
