In 2.5.4[56] USB has the following problems: - Kernel and lsusb unable to get strings (empty in driverfs and lsusb gets EPIPE from usbdevfs) - bAlternateSetting == 0 on interface 1 of my SpeedTouch USB (this prevents loading the firmware to it)
Reverting all the USB changes in 2.5.45 fixes the problems.
Here is what happens with broken kernels:
lspci:
00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping-
SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 64
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Capabilities: [a0] AGP version 1.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=x2
lsusb:
cannot get string descriptor 1, error = Broken pipe(32)
cannot get string descriptor 2, error = Broken pipe(32)
cannot get string descriptor 3, error = Broken pipe(32)
cannot get string descriptor 1, error = Broken pipe(32)
cannot get string descriptor 2, error = Broken pipe(32)
Bus 001 Device 003: ID 06b9:4061 Alcatel Telecom
Language IDs: none (cannot get min. string descriptor; got len=-1, error=32:Broken
pipe)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x06b9 Alcatel Telecom
idProduct 0x4061
bcdDevice 0.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
cannot get config descriptor 0, Broken pipe (32)
Language IDs: none (cannot get min. string descriptor; got len=-1, error=32:Broken
pipe)
Bus 001 Device 002: ID 045e:001e Microsoft Corp. IntelliMouse Explorer
Language IDs: none (cannot get min. string descriptor; got len=-1, error=32:Broken
pipe)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x001e IntelliMouse Explorer
bcdDevice 1.14
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
cannot get config descriptor 0, Broken pipe (32)
Language IDs: none (cannot get min. string descriptor; got len=-1, error=32:Broken
pipe)
Bus 001 Device 001: ID 0000:0000 Virtual Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000 Virtual
idProduct 0x0000 Hub
bcdDevice 2.05
iManufacturer 3 Linux 2.5.46 uhci-hcd
iProduct 2 Intel Corp. 82371AB/EB/MB PIIX4 USB
iSerial 1 00:04.2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 2
bInterval 255
Language IDs: (length=4)
0409 English(US)
driverfs:
/sys/bus/usb/devices/1-2/1-2:0/bAlternateSetting:
0
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceClass:
00
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:0/name:
usb-00:04.2-2 interface 0
/sys/bus/usb/devices/1-2/1-2:0/power:
0
/sys/bus/usb/devices/1-2/1-2:1/bAlternateSetting:
0
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceClass:
ff
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:1/name:
usb-00:04.2-2 interface 1
/sys/bus/usb/devices/1-2/1-2:1/power:
0
/sys/bus/usb/devices/1-2/1-2:2/bAlternateSetting:
0
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceClass:
ff
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:2/name:
usb-00:04.2-2 interface 2
/sys/bus/usb/devices/1-2/1-2:2/power:
0
/sys/bus/usb/devices/1-2/bcdDevice:
0000
/sys/bus/usb/devices/1-2/bConfigurationValue:
1
/sys/bus/usb/devices/1-2/bDeviceClass:
ff
/sys/bus/usb/devices/1-2/bDeviceProtocol:
00
/sys/bus/usb/devices/1-2/bDeviceSubClass:
00
/sys/bus/usb/devices/1-2/bmAttributes:
80
/sys/bus/usb/devices/1-2/bMaxPower:
250mA
/sys/bus/usb/devices/1-2/bNumInterfaces:
3
/sys/bus/usb/devices/1-2/idProduct:
4061
/sys/bus/usb/devices/1-2/idVendor:
06b9
/sys/bus/usb/devices/1-2/manufacturer:
/sys/bus/usb/devices/1-2/name:
Speed Touch USB (ALCATEL)
/sys/bus/usb/devices/1-2/power:
0
/sys/bus/usb/devices/1-2/product:
/sys/bus/usb/devices/1-2/serial:
/sys/bus/usb/devices/1-2/speed:
12
Here is what happens with a working 2.5.44 kernel:
lspci:
00:04.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01) (prog-if 00
[UHCI])
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping-
SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin D routed to IRQ 5
Region 4: I/O ports at d400 [size=32]
lsusb:
Bus 001 Device 003: ID 06b9:4061 Alcatel Telecom
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x06b9 Alcatel Telecom
idProduct 0x4061
bcdDevice 0.00
iManufacturer 1 ALCATEL
iProduct 2 Speed Touch USB
iSerial 3 [...]
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 147
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 16
bInterval 50
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x07 EP 7 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 32
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x07 EP 7 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 32
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 16
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x07 EP 7 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 16
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 8
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 8
bInterval 0
Language IDs: (length=4)
0409 English(US)
driverfs:
/sys/bus/usb/devices/1-2/1-2:0/bAlternateSetting:
0
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceClass:
ff
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:0/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:0/name:
usb-00:04.2-2 interface 0
/sys/bus/usb/devices/1-2/1-2:0/power:
0
/sys/bus/usb/devices/1-2/1-2:1/bAlternateSetting:
2
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceClass:
ff
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:1/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:1/name:
usb-00:04.2-2 interface 1
/sys/bus/usb/devices/1-2/1-2:1/power:
0
/sys/bus/usb/devices/1-2/1-2:2/bAlternateSetting:
0
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceClass:
ff
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceProtocol:
00
/sys/bus/usb/devices/1-2/1-2:2/bInterfaceSubClass:
00
/sys/bus/usb/devices/1-2/1-2:2/name:
usb-00:04.2-2 interface 2
/sys/bus/usb/devices/1-2/1-2:2/power:
0
/sys/bus/usb/devices/1-2/bcdDevice:
0000
/sys/bus/usb/devices/1-2/bConfigurationValue:
1
/sys/bus/usb/devices/1-2/bDeviceClass:
ff
/sys/bus/usb/devices/1-2/bDeviceProtocol:
00
/sys/bus/usb/devices/1-2/bDeviceSubClass:
00
/sys/bus/usb/devices/1-2/bmAttributes:
80
/sys/bus/usb/devices/1-2/bNumInterfaces:
3
/sys/bus/usb/devices/1-2/idProduct:
4061
/sys/bus/usb/devices/1-2/idVendor:
06b9
/sys/bus/usb/devices/1-2/manufacturer:
ALCATEL
/sys/bus/usb/devices/1-2/MaxPower:
250mA
/sys/bus/usb/devices/1-2/name:
Speed Touch USB (ALCATEL)
/sys/bus/usb/devices/1-2/power:
0
/sys/bus/usb/devices/1-2/product:
Speed Touch USB
/sys/bus/usb/devices/1-2/speed:
12
msg05302/pgp00000.pgp
Description: PGP signature
