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

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