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Bug#685360: [PATCH 1/1] HID: Fix missing Unifying device issue

On Fri, Sep 21, 2012 at 12:21:34PM +0200, Nestor Lopez Casado wrote:
> This patch fixes an issue introduced after commit 4ea5454203d991ec
> After that commit, hid-core silently discards any incoming packet
> that arrives while any hid driver's probe function is being executed.

I managed to test this now, on top of Linux 3.5, but it didn't fix my
keyboard. I still get the same sequence of messages with hid.debug=1:

+usb 5-2: new full-speed USB device number 3 using ohci_hcd
+drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 0
+drivers/hid/hid-logitech-dj.c: logi_dj_probe called for ifnum 0
+drivers/hid/hid-logitech-dj.c: logi_dj_probe: ignoring ifnum 0
+drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 1
+drivers/hid/hid-logitech-dj.c: logi_dj_probe called for ifnum 1
+drivers/hid/hid-logitech-dj.c: logi_dj_probe: ignoring ifnum 1
+drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 2
+drivers/hid/hid-logitech-dj.c: logi_dj_probe called for ifnum 2
+drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0110 wIndex=0x0002 wLength=7
+drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0111 wIndex=0x0002 wLength=20
+drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0120 wIndex=0x0002 wLength=15
+drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0121 wIndex=0x0002 wLength=32
+logitech-djreceiver 0003:046D:C52B.0005: claimed by neither input, hiddev nor hidraw
+logitech-djreceiver 0003:046D:C52B.0005: logi_dj_probe:hid_hw_start returned error

     2. That which causes joy or happiness.

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