Quoting Alan Stern <[EMAIL PROTECTED]>: > > Mister Greg, how to change configuration _inside_ the driver? Device > > was made to be > > working on second usb config after one reconnect/device change, i've > > lost whole day > > trying to make something with that. After all, usb_set_configuration() > > isn't even > > EXPORT()ED at all !
The current driver depends on a hot plug script to change configurations. See the comments at the top of the file. That is not an ideal situation at all. If 2.6.19 again has a way for the driver to change its configuration that would be great. -- Al > > It isn't exported because, generally speaking, drivers can't use it. If > your driver called usb_set_configuration() from within its probe routine, > it would hang. That's because usb_set_configuration would unregister the > interface being probed by your driver, so it would try to call your > driver's disconnect routine, but first it would have to wait for the probe > to finish -- deadlock. > > There is an exported routine drivers can use in the rare cases where they > do need to change configurations. It's called > usb_driver_set_configuration(), and it is present in 2.6.19. > > Alan Stern > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
