Re: How to use an USB<->serial adapter?

[Boszormenyi Zoltan]

Daniel Egger wrote:
> Am Don, 2003-08-21 um 14.44 schrieb Boszormenyi Zoltan:
>
>
> > usb.c: registered new driver serial
> > usbserial.c: USB Serial support registered for Generic
> > usbserial.c: USB Serial Driver core v1.4
> > usbserial.c: USB Serial support registered for PL-2303
> > usbserial.c: PL-2303 converter detected
> > usbserial.c: PL-2303 converter now attached to ttyUSB0 \
> > (or usb/tts/0 for devfs)
> > pl2303.c: Prolific PL2303 USB to serial adaptor driver v0.9
>
>
> Works for me, even on PowerPC. I'm typically using minicom and ckermit
> but mgetty and others work fine, too.

What product is this? Mine is a Wiretek UN8BE, based on Prolific 2303.

# lsusb -s 001:002
Bus 001 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial 
Port
  Language IDs: none (invalid length string descriptor 63; len=7)
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 Interface
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x067b Prolific Technology, Inc.
  idProduct          0x2303 PL2303 Serial Port
  bcdDevice            2.02
  iManufacturer           0   <--- should'nt these two be set?
  iProduct                0   <--- (or not, it is optional)
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      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         10
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               none
        wMaxPacketSize         64
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               none
        wMaxPacketSize         64
        bInterval               0
  Language IDs: none (invalid length string descriptor 63; len=7)

In the shop they said this one cannot be used as a null-link but works
with external serial devices, e.g. modems. I have yet to verify this
statement myself.

> > setserial produces an error:
>
>
> What do you need this relic from former times for?

I tried to query the USB serial line's current parameters.
Is there any other utilities that can do this for me?

--
Best regards,
Zoltán Böszörményi

---------------------
What did Hussein say about his knife?
One in Bush worth two in the hand.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/