Re: keyspan USB serial not creating devices

[Greg KH <greg@kroah.com>]

On Sat, Nov 08, 2008 at 07:26:32AM -0800, Yan Seiner wrote:
> Greg KH wrote:
>> On Fri, Nov 07, 2008 at 09:02:43AM -0800, Yan Seiner wrote:
>>   
>>> I have a keyspan USB serial dongle that has quit working.  It used to 
>>> work
>>> on a machine with an older kernel (2.6.18???), properly creating the
>>> /dev/ttyUSB device.  Unfortunately I no longer have that machine.  The
>>> machine it's on now runs a 2.6.26 kernel, and the device is not being
>>> created.  The dongle is recognized, but no ttyUSB? are created:
>>>
>>> [139761.937391] usb 2-10.3: new full speed USB device using ehci_hcd and
>>> address 50
>>> [139762.046702] usb 2-10.3: configuration #1 chosen from 1 choice
>>> [139762.047357] keyspan 2-10.3:1.0: Keyspan - (without firmware)
>>> converter detected
>>> [139762.047364] firmware: requesting keyspan/usa19qi.fw
>>> [139762.089684] usb 2-10.3: New USB device found, idVendor\x06cd,
>>> idProduct\x010b
>>> [139762.089684] usb 2-10.3: New USB device strings: Mfr=0, Product=0,
>>> SerialNumber=0
>>>
>>> It used to work with no firmware, but I went ahead and installed the
>>> firmware from the 2.6.27 kernel; no difference. Still no /dev/ttyUSB?
>>> device.
>>>     
>>
>> These devices never would work without firmware, the older kernel
>> versions had the firmware built into the drivers.  Are you sure you did
>> load the firmware for the device properly?  Can you just build the
>> firmware into the driver and see if that solves your issue?
>>
>>   
> Interesting... I built a vanilla 2.6.27.4 kernel, and the problem went 
> away.  Must be something debian does, or perhaps the 2.6.26 kernel handles 
> the firmware differently from the 2.6.27 kernel.

Ah, yeah, go take it up with the debian people, they exclude firmware
blobs from their kernel trees for various dubious reasons.  This is
their bug, not ours.

good luck,

greg k-h