Messages in this thread | | | Subject | Re: Changes to PM layer break userspace | From | Arjan van de Ven <> | Date | Thu, 28 Dec 2006 17:04:48 +0100 |
| |
On Thu, 2006-12-28 at 13:31 +0000, Alan wrote: > > Seems to me anyone really desperate to put PCI devices into a low > > power mode, without driver support at the "ifdown" level, would be > > able just "rmmod driver; setpci". > > Incorrect for very obvious reasons - there may be two devices driven by > the same driver one up and one down.
btw this same "incorrect" applies to the sysfs method, that also does a more or less uncontrolled/uncoordinated power state switch.
All the more reason to have the "normal" device interfaces do the right thing, so that the kernel has a standing chance to coordinate it properly.
-- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org
- 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/
| |