usb camera failing in 2.6.13-rc6

From: Con Kolivas
Date: Sun Aug 14 2005 - 02:14:22 EST

A digital camera which was working fine in 2.6.11/12 now fails on 2.6.13-rc6
(not sure when it started failing).

All the messages seem to indicate that it's working but the digikam
application now says it fails to initialise the camera.

The relevant info from dmesg says:
usb 3-1: new full speed USB device using uhci_hcd and address 2
usb 3-1: usbfs: interface 0 claimed by usbfs while 'digikamcameracl' sets
config #1
usb 3-1: USB disconnect, address 2


the only difference from previously is this:
-usb 3-1: usbfs: interface 0 claimed while 'digikamcameracl' sets config #1
+usb 3-1: usbfs: interface 0 claimed by usbfs while 'digikamcameracl' sets
config #1


dmesg difference does not show any significant difference either apart from
this:
+usbmon: debugs is not available
-drivers/usb/input/hid-core.c: v2.0:USB HID core driver
+drivers/usb/input/hid-core.c: v2.01:USB HID core driver


lsusb -v shows no difference, here is the relevant section:
Bus 003 Device 003: ID 04a9:3077 Canon, Inc. PowerShot S50
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 32
idVendor 0x04a9 Canon, Inc.
idProduct 0x3077 PowerShot S50
bcdDevice 0.01
iManufacturer 1 Canon Inc.
iProduct 2 Canon Digital Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 6 Imaging
bInterfaceSubClass 1 Still Image Capture
bInterfaceProtocol 1 Picture Transfer Protocol (PIMA 15470)
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 96


relevant dmesg of 2.6.13-rc6 follows:
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
USB Universal Host Controller Interface driver v2.3
uhci_hcd 0000:00:1d.0: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #1
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
uhci_hcd 0000:00:1d.1: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #2
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
uhci_hcd 0000:00:1d.2: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #3
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
ehci_hcd 0000:00:1d.7: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI
Controller
usb 1-1: new low speed USB device using uhci_hcd and address 2
input: USB HID v1.00 Mouse [Microsoft Microsoft IntelliMouse® Optical] on
usb-0000:00:1d.0-1
usb 1-2: new full speed USB device using uhci_hcd and address 3
usb 2-2: new full speed USB device using uhci_hcd and address 2
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 3 if 0 alt 0
proto 2 vid 0x03F0 pid 0x8104
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
ehci_hcd 0000:00:1d.7: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004
usb 1-1: USB disconnect, address 2
usb 1-2: USB disconnect, address 3
usb 2-2: USB disconnect, address 2
hub 4-0:1.0: USB hub found
usb 1-1: new low speed USB device using uhci_hcd and address 4
input: USB HID v1.00 Mouse [Microsoft Microsoft IntelliMouse® Optical] on
usb-0000:00:1d.0-1
usb 1-2: new full speed USB device using uhci_hcd and address 5
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 5 if 0 alt 0
proto 2 vid 0x03F0 pid 0x8104
usb 2-2: new full speed USB device using uhci_hcd and address 3
usb 3-1: new full speed USB device using uhci_hcd and address 2
usb 3-1: USB disconnect, address 2


Relevant lspci output:
00:1d.0 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB
UHCI Controller #1 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8089
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at d800 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB
UHCI Controller #2 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8089
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at d400 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB
UHCI Controller #3 (rev 02) (prog-if 00 [UHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8089
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at d000 [size=32]

00:1d.7 USB Controller: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI
Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Asustek Computer, Inc.: Unknown device 8089
Flags: bus master, medium devsel, latency 0, IRQ 20
Memory at d4800000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <available only to root>


Cheers,
Con
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