Hi
I have a "Ram Bo Hi-Speed Crystal Disk" USB mass storage device that
causes problems with vanilla 2.6.7.
I'm using udev 0.29 on Gentoo
USB and SCSI are compiled as modules
When I insert the device I see the following in syslog:
Jul 4 15:02:09 homer usb 2-2.4: new full speed USB device using address
3
Jul 4 15:02:10 homer SCSI subsystem initialized
Jul 4 15:02:10 homer Initializing USB Mass Storage driver...
Jul 4 15:02:10 homer scsi0 : SCSI emulation for USB Mass Storage
devices
Jul 4 15:02:10 homer Vendor: Generic Model:
Rev:
Jul 4 15:02:10 homer Type: Direct-Access ANSI
SCSI revision: 02
Jul 4 15:02:10 homer USB Mass Storage device found at 3
Jul 4 15:02:10 homer usbcore: registered new driver usb-storage
Jul 4 15:02:10 homer USB Mass Storage support registered.
Jul 4 15:02:11 homer scsi.agent[8484]: disk at
/devices/pci0000:00/0000:00:04.3/usb2/2-2/2-2.4/2-2.4:1.0/host0/0:0:0:0
Jul 4 15:02:11 homer SCSI device sda: 251904 512-byte hdwr sectors (129
MB)
Jul 4 15:02:11 homer sda: Write Protect is off
Jul 4 15:02:11 homer sda: Mode Sense: 03 00 00 00
Followed a few seconds later by:
Jul 4 15:02:41 homer hub 2-0:1.0: port 2 disabled by hub (EMI?),
re-enabling...<6>usb 2-2: USB disconnect, address 2
Jul 4 15:02:41 homer usb 2-2.4: USB disconnect, address 3
At this time a ps -ef shows:
root 8475 1 0 15:02 ? 00:00:00 [usb-storage]
root 8476 1 0 15:02 ? 00:00:00 [scsi_eh_0]
root 8483 4 0 15:02 ? 00:00:00 /bin/sh /sbin/hotplug
scsi
root 8484 8483 0 15:02 ? 00:00:00 /bin/sh
/etc/hotplug/scsi.agent
root 8503 8484 0 15:02 ? 00:00:00 modprobe sd_mod
The output from lsusb -v (before the hub is disabled) is:
Bus 002 Device 003: ID 08ec:0834 M-Systems Flash Disk Pioneers
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x08ec M-Systems Flash Disk Pioneers
idProduct 0x0834
bcdDevice 1.00
iManufacturer 16 Generic
iProduct 32 USB Flash Disk
iSerial 48 AAAAA11432289
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 64
bmAttributes 0x80
MaxPower 84mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 96 BULK
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Language IDs: (length=4)
0409 English(US)
Bus 002 Device 002: ID 058f:9254 Alcor Micro Corp. Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x058f Alcor Micro Corp.
idProduct 0x9254 Hub
bcdDevice 1.00
iManufacturer 1 ALCOR
iProduct 2 Generic USB Hub
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
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 1
bInterval 255
Language IDs: (length=4)
0409 English(US)
Bus 002 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3 Linux 2.6.7 uhci_hcd
iProduct 2 VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (#2)
iSerial 1 0000:00:04.3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
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)
Bus 001 Device 002: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x0040 Wheel Mouse Optical
bcdDevice 1.21
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 72
cannot get report descriptor
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 4
bInterval 10
Language IDs: (length=24)
0409 English(US)
0809 English(UK)
0c09 English(Australian)
1009 English(Canadian)
1409 English(New Zealand)
1809 English(Ireland)
1c09 English(South Africa)
2009 English(Jamaica)
2409 English(Carribean)
2809 English(Belize)
2c09 English(Trinidad)
Bus 001 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3 Linux 2.6.7 uhci_hcd
iProduct 2 VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller
iSerial 1 0000:00:04.2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
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)
After the hub is disabled, running lsusb will hang, and the "USB Hotplug
System" hangs on shutdown, requiring a reset.
I also tried to load all the modules (sg, sd_mod, scsi_mod, usb-storage)
before plugging in the device, but no /dev node is created by udev, and
the USB hotplug system still hangs on shutdown.
Thanks
Jesse
--
Jesse Stockall <[EMAIL PROTECTED]>
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