Mass storage device

[rckanta]

I tried to interface using libusb and I checked the packet. The USB device does not respond.
There is nothing wrong in the program and USB packet.

How can I interface the mass storage device or SCSI device?
I am trying interfaced from C program?



Bus 001 Device 006: ID 2109:7638 VIA Labs, Inc.
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x2109 VIA Labs, Inc.
  idProduct          0x7638
  bcdDevice            0.00
  iManufacturer           1 USBKey Chip
  iProduct                2 USBKey Module
  iSerial                 3 202730041341
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0020
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              200mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      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     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
can't get debug descriptor: Resource temporarily unavailable
Device Status:     0x0000
  (Bus Powered)

[WattsThat]

I find that a tall cup of a nice dark roast opens the interface to my mass storage device. Once data transfer begins, my interrupt driven system clock typically initiates a daily routine of garbage collection and disposal.

A serious answer requires a serious question. Next contestant please.

[rckanta]

I find that a tall cup of a nice dark roast opens the interface to my mass storage device. Once data transfer begins, my interrupt driven system clock typically initiates a daily routine of garbage collection and disposal.

A serious answer requires a serious question. Next contestant please.

If you don't know the answer or if you can not help.
Please don't waste my time to read your comment.

[WattsThat]

I responded to your original post, which before you edited was:

How can I interface the mass storage device or SCSI device?
I am trying interfaced from C program?