Re: keyspan USB serial not creating devices

[Yan Seiner <yan@seiner.com>]

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.

--Yan