Hi,

I've already wrote about this bug on the usb-user mailing list and on the
http://bugme.osdl.org/show_bug.cgi?id=1873

Now I've found a workaround to avoid this but I can access at the 
bugme.osdl.org page for a strange error so I've decided to post on this list.
I've attacched the message that I've sent to the usb-users list.

Listening the various discussion of Marcel Holtmann and the other developers 
on the usb-devel about usbfs problems, I've decided to umount it before 
plugging my usb device and then it worked without any problem. 

Probably the reason that it worked when I plugged it before the init scripts 
was that in that moment the usbfs wasn't mounted.

So I think that the usbfs issue is true. 

If someone is interested I can give more debugging infos, Thanks for your 
time!

Bye!
> > Hi,
> > I don't know if this is the right place for this problem because I don't
> > know if it's a bluez or a usb problem.
> >
> > I'm using the last kernel 2.6.1-rc1 patch with patch-2.6.0-mh1 but this
> > happens with 2.6.0, 2.6.0-mm1, 2.6.0-mm2, 2.6.1-rc1-mm1 and with the
> > 2.4.22 and 2.4.23 kernels.
> >
> > I've got a DIGICOM PALLADIO bluetooth USB adapter with a CSR chipset:
> >
> > When I start my system with this device already plugged it works well
> > with NO problems but when I plug it after the init scripts I've got a lot
> > of this errors from dmesg:
> >
> > Jan  3 13:47:44 localhost hub 2-0:1.0: new USB device on port 2, assigned
> > address 2
> > Jan  3 13:47:45 localhost Bluetooth: HCI USB driver ver 2.4
> > Jan  3 13:47:45 localhost hci_usb: probe of 2-2:1.2 failed with error -5
> > Jan  3 13:47:45 localhost drivers/usb/core/usb.c: registered new driver
> > hci_usb
> > Jan  3 13:47:45 localhost hcid[4695]: HCI dev 0 registered
> > Jan  3 13:47:45 localhost hci_usb_isoc_rx_submit: hci0 isoc rx submit
> > failed urb ccbbfc14 err -22
> > Jan  3 13:47:45 localhost hci_usb_isoc_rx_submit: hci0 isoc rx submit
> > failed urb ccbbfc14 err -22
> > Jan  3 13:47:45 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:45 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 18 ret -110
> > Jan  3 13:47:45 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:45 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 18 ret -110
> > Jan  3 13:47:45 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:45 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 193 ret -110
> > Jan  3 13:47:45 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:45 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 18 ret -110
> >
> > [......]
> >
> > Jan  3 13:47:56 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:56 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 193 ret -110
> > Jan  3 13:47:56 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:56 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 193 ret -110
> > Jan  3 13:47:56 localhost usb 2-2: control timeout on ep0in
> > Jan  3 13:47:56 localhost usbfs: USBDEVFS_CONTROL failed cmd usbmodules
> > dev 2 rqt 128 rq 6 len 193 ret -110
> >
> > Then I disconnect the adapter.
> >
> > Jan  3 13:48:45 localhost usb 2-2: USB disconnect, address 2
> > Jan  3 13:48:45 localhost hcid[4695]: HCI dev 0 unregistered
> >
> > When I reconnect it I've got the same errors.
> >
> > On kernels 2.4.20-21-22-23 I've got the same errors but with
> >  localhost usb_control/bulk_msg: timeout
> > and not
> >  localhost usb 2-2: control timeout on ep0in
> >
> > On the bluez mailinglist they said that this is probably a KNOW usb-uhci
> > problem but I can't find any solution or patch to it. I've tried
> > unloading and reloading the modules, using noapic and acpi=no, disabling
> > the ehci but nothing changed.
> >
> > I've got a via chipset :-( and I've disabled the USB 2.0 capabilities
> > (but nothing changed too).
> >
> > 00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400 AGP] Host
> > Bridge Subsystem: VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge
> > Flags: bus master, 66Mhz, medium devsel, latency 8
> >         Memory at d0000000 (32-bit, prefetchable) [size=128M]
> >         Capabilities: [a0] AGP version 2.0
> >         Capabilities: [c0] Power Management version 2
> >
> > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge (prog-if 00
> > [Normal decode])
> >         Flags: bus master, 66Mhz, medium devsel, latency 0
> >         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> >         Memory behind bridge: e8000000-e9ffffff
> >         Prefetchable memory behind bridge: d8000000-e7ffffff
> >         Capabilities: [80] Power Management version 2
> >
> > 00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00
> > [UHCI])
> >         Subsystem: Unknown device 1695:3005
> >         Flags: bus master, medium devsel, latency 32, IRQ 201
> >         I/O ports at d000 [size=32]
> >         Capabilities: [80] Power Management version 2
> >
> > 00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00
> > [UHCI])
> >         Subsystem: Unknown device 1695:3005
> >         Flags: bus master, medium devsel, latency 32, IRQ 201
> >         I/O ports at d400 [size=32]
> >         Capabilities: [80] Power Management version 2
> >
> > 00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00
> > [UHCI])
> >         Subsystem: Unknown device 1695:3005
> >         Flags: bus master, medium devsel, latency 32, IRQ 201
> >         I/O ports at d800 [size=32]
> >         Capabilities: [80] Power Management version 2
> >
> >
> > If this isn't the right place excuse me.
>

-- 
Simone Gotti
<[EMAIL PROTECTED]>


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