Re: Reattach/redetect allways connected umass device - is it possible ?
"M. Warner Losh" <[email protected]>
| Newsgroups | gmane.os.freebsd.current,gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
In message: <[email protected]> "Poul-Henning Kamp" <[email protected]> writes: : In message <[email protected]>, Bernd Walter writes: : : >> camcontrol detach da0; camcontrol rescan all : >> helps, but, it should be much better if it will be issued automatically. : > : >Yes - GEOM seems to ignore media change signals from drives. : >I've added PHK to the recipient list - maybe he has an idea about this : >problem. : : No, GEOM doesn't ignore any such thing, because as far as I know : GEOM doesn't get any such thing to ignore in the first place. The usb dongles don't appear to 'generate media gone on walkabout events' as far as I've seen. However, we should investigate the possibility of querying the status for at each open, and updating the geometry, et al, if it has changed. This kind of polling would be 'lazy' so it wouldn't interfere with other parts of the system, but it would likely be sufficient (since eject in the middle of I/O will generate an I/O error). Warner _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"