On Wed, 20 May 2009, Oliver Neukum wrote: > Am Dienstag, 19. Mai 2009 23:47:02 schrieb Mario Limonciello: > > Hi Oliver: > > > Attached are both the lsusb listings. As you can see, the missing > > device post-suspend is that Bluetooth radio device (which is why I > > proposed this patch in the first place). > > This explains the error in your log. > > > There is a udev removal event for this device, but as I said, there are > > no add/remove/change events for the keyboard or mouse devices. I'm > > attaching udevadm monitor ran from right before the suspend to right after. > > That is correct the devices have been successfully resumed and thus are > present. Generally the idea of suspened/resume is to have the same system > after resumption. It is correct to not generate events. Usbcore cannot know > that you use udev to switch the device from pure HID to HID + bluetooth. > > > Sending the appropriate hid report to the mouse device will re-attach > > this Bluetooth radio device to the bus. > > Yes, the question is whether it is the clean thing to do. > > Marcel, are the HID devices usable after hid2hci has run? Should we > choose to not resume from power loss any hid device which hid2hci > operated on? I'd like to know why the device switches back from HID+bluetooth to pure HID during a suspend-resume sequence. Does it undergo a reset-resume? Here's another question: Since there is a udev removal event for the radio device, why not add a udev rule to switch back to HID+bluetooth mode every time that event occurs? Alan Stern -- 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
