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=06cd,
idProduct=010b
[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
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