[ts-7000] TS 7500 & USB Serial Device

["tarmip" <>]

I'm hoping someone can help me. I have a USB Serial device. I am not getting 
any response from the device in my code.   This particular device has been 
tested with similar code using a Windows setup so I know that the device itself 
is okay.

I can open /dev/ttyUSB0, write, flush, etc but a read just doesn't return 
anything.


I Added the following to /etc/modules
   usbserial vendor=0x10c4 product=0xea60


I am far from a LINUX expert - so there may be an obvious step that I have 
missed. 

Thanks in advance for any help anyone might have.  The rest of this post shows 
some of the information that may be helpful


------------------------

The modules I have installed
# lsmod
Module                  Size  Used by
usbserial              19056  0
cdc_acm                 8772  0
g_ether                17744  0
str8100_udc            13572  1 g_ether
ohci_hcd               14372  0
smsc9500               56484  0
smscusbnet             16396  1 smsc9500
usb_storage            23072  0
ehci_hcd               22028  0
usbcore                74300  7 
usbserial,cdc_acm,ohci_hcd,smsc9500,smscusbnet,usb_storage,ehci_hcd
sd_mod                 15504  0
scsi_mod               55372  2 usb_storage,sd_mod


#dmesg
[58230.300000] usb 2-2: new full speed USB device using str8100-ohci and address
 6
[58230.490000] usb 2-2: configuration #1 chosen from 1 choice
[58230.490000] usbserial_generic 2-2:1.0: generic converter detected
[58230.490000] usb 2-2: generic converter now attached to ttyUSB0


# lsusb
Bus 002 Device 006: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x 
Composite Device
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

# lsusb -v

Bus 002 Device 006: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x 
Composite Device
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x10c4 Cygnal Integrated Products, Inc.
  idProduct          0xea60 CP210x Composite Device
  bcdDevice            1.00
  iManufacturer           1 Silicon Labs
  iProduct                2 CP2102 USB to UART Bridge Controller
  iSerial                 3 0001
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              2 CP2102 USB to UART Bridge Controller
      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
Device Status:     0x0000
  (Bus Powered)





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