Comment 6 for bug 231276

Revision history for this message
sglow (sag-ollies) wrote : Re: [Bug 231276] Re: ti_usb_3410_5052 driver doesn't load some devices

Hi Leann;

I downloaded the Alpha-5 live CD and tried this out. It's still not
working, but the failure mode is definitely different that that of 8.04.

On the 8.04 release of Ubuntu, the problem seems to be that the device
isn't being recognized as a device that can be handled by this driver at
all. The reason was the two lines that were changed from the stock
kernel which I flagged in my initial bug report.

In Alpha-5 of 8.10 the problem is different. In this release the device
is triggering the correct driver, but the driver is failing with a
'firmware file not found' error.

I took a quick look at the differences between the stock kernel from
kernel.org and the one in the git database for Ubuntu 8.10 and noticed
that the two header files which contain the device firmware used by this
driver have been removed from the Ubuntu version. Normally the driver
has this firmware compiled directly into it, but for some reason the
Ubuntu flavor of the kernel has had these files removed. This seems to
be the cause of the latest failure of this device.

Is the firmware used by this family of devices included somewhere in a
separate file? If it is, then the driver doesn't seem to be able to
locate it. If not, perhaps it should be. Better yet, why deviate from
the stock kernel method of compiling the firmware right into the
driver. It's certainly more foolproof.

Note that the firmware in question is not something that's specific to
this emulator that I'm testing with. I believe that it's used by most,
if not all, devices that utilize this driver. I have to assume that
removing it will make a whole class of serial port adapters that use
this driver difficult to use under Ubuntu 8.10.

Best regards,
Steve

Leann Ogasawara wrote:
> Hi Guys,
>
> dlotton - you'll need to enable the Intrepid repository in order to get
> the 2.6.27 kernel.
>
> However, Alpha5 was released last week so you could test with a LiveCD
> as well - http://www.ubuntu.com/testing/intrepid/alpha5 . Please let us
> know your results if you are able to test. Thanks.
>
> ** Changed in: linux (Ubuntu)
> Status: New => Incomplete
>
>