Re: Keyspan 4 port USB->Serial

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Matt Singer (mrsinger) wrote:
> The module is not loading automatically. If I do a modprobe on
keyspan it loads, bub usb-serial does not seem to do anything.
Making the device files manually doesnt seem to help. Obviously I
don't know enough to know what I'm doing with this.
> 
> 
What shows up in /var/log/messages when you plug it in? How about
when you load the module? As someone else indicated, it does not
sound like this model is supported by this module. Another check, it
you know how to read it, is to look in /proc/bus/usb/devices for
your device. If you get Driver=none then the device is not supported
by any loaded module. This is usually a good indication that the
device is not supported. There are exceptions to this - devices
supported by user space programs. (REB-1100 supported by rebcom for
example.)

Here is an example of an unsupported device.
T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 18 Spd=1.5 MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=07d0 ProdID=4959 Rev= 1.00
S:  Manufacturer=Kingsun CO.
S:  Product=USB to IRDA
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=1ms

Here is what shows up in the logs when I plug it in:
Nov  5 10:13:42 mikkel kernel: usb 2-1: new low speed USB device
using uhci_hcd and address 18
Nov  5 10:13:42 mikkel kernel: usb 2-1: configuration #1 chosen from
1 choice

Hers is what the logs from a supported USB serial device look like.
(My GPS device.)
Nov  5 10:17:42 mikkel kernel: usb 2-1: USB disconnect, address 18
Nov  5 10:18:55 mikkel kernel: usb 2-1: new full speed USB device
using uhci_hcd and address 19
Nov  5 10:18:55 mikkel kernel: usb 2-1: configuration #1 chosen from
1 choice
Nov  5 10:18:55 mikkel kernel: pl2303 2-1:1.0: pl2303 converter detected
Nov  5 10:18:55 mikkel kernel: usb 2-1: pl2303 converter now
attached to ttyUSB0

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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