Ming, We are splitting hairs now. :) I want to be clear I think your changes are good and the rest of this conversation is just to learn something new.
On Thu, Aug 8, 2013 at 4:48 PM, Ming Lei <[email protected]> wrote: > On Fri, Aug 9, 2013 at 1:25 AM, Grant Grundler <[email protected]> wrote: ... >>> I am afraid that PCI network devices' setting still won't survive unbound& >>> re-probed, will they? >> >> Correct - but PCI isn't as prone to "dropping off the bus" like USB > > As far as I know, USB device still won't be disconnected easily, and > reset is possible, but we can make setting survive reset by implementing > .pre_reset() and .post_reset() callback. Or do you have other situation > of USB 'dropping off the bus'? So far only older USB core bugs like this one: https://codereview.chromium.org/4687002/show I agree USB won't be disconnected easily. >> is. Master aborts on some PCI systems is a "Fatal Exception" and AFAIK >> that's never been true for any USB device. > > I mean rmmod & modprobe still can reset setting of one PCI network > device after powering on the device, can't it? Definitely. But this isn't something that will "randomly" happen and will leave tracks all over the place of it happening. So I'm not worried about trying to debug this scenario. thanks, grant > > > Thanks, > -- > Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
