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Have you received a lot of debugging messages at the output of dmesg |
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when copying files? |
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|
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Hung |
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|
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On 12/26/09 15:54, Paul Hartman wrote: |
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> Hi, |
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> |
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> I got a Nokia N900 linux internet tablet/phone a few days ago, and |
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> when I connect it in USB Mass Storage mode to a Windows Vista computer |
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> I can write at 17MB/sec, but when I connect it to my Gentoo box my |
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> writes are really slow, between 500-900kb/sec depending on if I mount |
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> in "sync" mode or not. As far as I know it should be just a totally |
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> standard/generic mass storage device. (there were no drivers or |
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> software install needed in windows, it just worked) |
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> |
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> Other USB devices plugged into the same port go full speed, and AFAIK |
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> everything appears as if it should be high speed USB 2.0. Has anyone |
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> seen something like this before? I'm not sure what the deal is. It |
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> takes 20 minutes to copy 1 gigabyte from Linux and takes just under 1 |
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> minute to do the same in Windows. |
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> |
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> I'm not sure about debugging USB or what the options are. Everything |
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> I've used previously has worked without any hassle. |
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> |
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> lsusb -vv output for this device: |
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> |
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> Bus 001 Device 031: ID 0421:01c7 Nokia Mobile Phones |
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> Device Descriptor: |
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> bLength 18 |
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> bDescriptorType 1 |
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> bcdUSB 2.00 |
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> bDeviceClass 0 (Defined at Interface level) |
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> bDeviceSubClass 0 |
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> bDeviceProtocol 0 |
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> bMaxPacketSize0 64 |
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> idVendor 0x0421 Nokia Mobile Phones |
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> idProduct 0x01c7 |
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> bcdDevice 3.16 |
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> iManufacturer 1 Nokia |
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> iProduct 2 N900 (Storage Mode) |
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> iSerial 3 (censored) |
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> bNumConfigurations 2 |
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> Configuration Descriptor: |
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> bLength 9 |
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> bDescriptorType 2 |
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> wTotalLength 32 |
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> bNumInterfaces 1 |
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> bConfigurationValue 1 |
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> iConfiguration 4 Max power |
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> bmAttributes 0x80 |
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> (Bus Powered) |
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> MaxPower 500mA |
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> Interface Descriptor: |
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> bLength 9 |
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> bDescriptorType 4 |
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> bInterfaceNumber 0 |
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> bAlternateSetting 0 |
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> bNumEndpoints 2 |
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> bInterfaceClass 8 Mass Storage |
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> bInterfaceSubClass 6 SCSI |
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> bInterfaceProtocol 80 Bulk (Zip) |
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> iInterface 6 Mass Storage |
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> Endpoint Descriptor: |
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> bLength 7 |
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> bDescriptorType 5 |
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> bEndpointAddress 0x81 EP 1 IN |
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> bmAttributes 2 |
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> Transfer Type Bulk |
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> Synch Type None |
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> Usage Type Data |
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> wMaxPacketSize 0x0200 1x 512 bytes |
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> bInterval 0 |
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> Endpoint Descriptor: |
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> bLength 7 |
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> bDescriptorType 5 |
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> bEndpointAddress 0x01 EP 1 OUT |
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> bmAttributes 2 |
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> Transfer Type Bulk |
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> Synch Type None |
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> Usage Type Data |
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> wMaxPacketSize 0x0200 1x 512 bytes |
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> bInterval 1 |
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> Configuration Descriptor: |
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> bLength 9 |
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> bDescriptorType 2 |
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> wTotalLength 32 |
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> bNumInterfaces 1 |
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> bConfigurationValue 2 |
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> iConfiguration 5 Self-powered |
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> bmAttributes 0xc0 |
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> Self Powered |
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> MaxPower 100mA |
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> Interface Descriptor: |
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> bLength 9 |
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> bDescriptorType 4 |
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> bInterfaceNumber 0 |
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> bAlternateSetting 0 |
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> bNumEndpoints 2 |
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> bInterfaceClass 8 Mass Storage |
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> bInterfaceSubClass 6 SCSI |
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> bInterfaceProtocol 80 Bulk (Zip) |
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> iInterface 6 Mass Storage |
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> Endpoint Descriptor: |
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> bLength 7 |
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> bDescriptorType 5 |
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> bEndpointAddress 0x81 EP 1 IN |
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> bmAttributes 2 |
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> Transfer Type Bulk |
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> Synch Type None |
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> Usage Type Data |
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> wMaxPacketSize 0x0200 1x 512 bytes |
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> bInterval 0 |
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> Endpoint Descriptor: |
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> bLength 7 |
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> bDescriptorType 5 |
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> bEndpointAddress 0x01 EP 1 OUT |
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> bmAttributes 2 |
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> Transfer Type Bulk |
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> Synch Type None |
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> Usage Type Data |
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> wMaxPacketSize 0x0200 1x 512 bytes |
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> bInterval 1 |
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> Device Qualifier (for other device speed): |
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> bLength 10 |
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> bDescriptorType 6 |
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> bcdUSB 2.00 |
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> bDeviceClass 0 (Defined at Interface level) |
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> bDeviceSubClass 0 |
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> bDeviceProtocol 0 |
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> bMaxPacketSize0 64 |
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> bNumConfigurations 2 |
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> Device Status: 0x0000 |
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> (Bus Powered) |
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> |
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> |
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> |
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> dmesg output when it is plugged in: |
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> |
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> [2920730.031010] usb 1-4: new high speed USB device using ehci_hcd and |
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> address 31 |
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> [2920730.146451] usb 1-4: New USB device found, idVendor=0421, idProduct=01c7 |
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> [2920730.146455] usb 1-4: New USB device strings: Mfr=1, Product=2, |
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> SerialNumber=3 |
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> [2920730.146458] usb 1-4: Product: N900 (Storage Mode) |
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> [2920730.146460] usb 1-4: Manufacturer: Nokia |
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> [2920730.146462] usb 1-4: SerialNumber: (censored) |
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> [2920730.146540] usb 1-4: configuration #1 chosen from 2 choices |
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> [2920730.148268] scsi27 : SCSI emulation for USB Mass Storage devices |
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> [2920730.148342] usb-storage: device found at 31 |
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> [2920730.148345] usb-storage: waiting for device to settle before scanning |
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> [2920735.150436] scsi 27:0:0:0: Direct-Access Nokia N900 |
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> 031 PQ: 0 ANSI: 2 |
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> [2920735.150567] sd 27:0:0:0: Attached scsi generic sg7 type 0 |
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> [2920735.155882] sd 27:0:0:0: [sdg] Attached SCSI removable disk |
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> [2920735.156449] usb-storage: device scan complete |
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> [2920741.306353] sd 27:0:0:0: [sdg] 56631296 512-byte logical blocks: |
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> (28.9 GB/27.0 GiB) |
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> [2920741.306721] sd 27:0:0:0: [sdg] Assuming drive cache: write through |
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> [2920741.307970] sd 27:0:0:0: [sdg] Assuming drive cache: write through |
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> [2920741.307972] sdg: |
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> |
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> |
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> And I mounted with these options: |
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> /dev/sdg /mnt/usb vfat |
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> user,sync,umask=1000,rw,noauto,check=relaxed 0 0 |
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> |
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> |
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> thanks |
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> paul |
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> |
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> |
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