Am Montag, 28. Dezember 2009 01:07:21 schrieb Pete Zaitcev: > If you say so, I don't object. But honestly, I don't understand well how > the PM subsystem works. I don't know if I can ack this. At any rate > let's apply and see what happens Under the old system a device could be suspended for three reasons: 1. system sleep 2. autosuspend 3. user request through sysfs Under the new system reason #3 has been removed. Therefore if suspend() is called, either user space is frozen or the device is closed, as open() calls usb_autopm_get_interface() which elevates the pm count, blocking autosuspend. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
