Messages in this thread | | | Date | Mon, 02 Jun 2014 12:26:04 -0400 | From | Mike Remski <> | Subject | Re: ftdi_sio BUG: NULL pointer dereference |
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On 06/02/2014 12:23 PM, Greg KH wrote: > On Mon, Jun 02, 2014 at 12:09:36PM -0400, Mike Remski wrote: >> On 06/02/2014 11:40 AM, Johan Hovold wrote: >>> [ Please avoid top-posting. ] >>> >>> On Mon, Jun 02, 2014 at 11:16:11AM -0400, Mike Remski wrote: >>>> Thanks Johan, that's why I looked at the cross references for ftdi_sio.c >>>> over on >>>> http://lxr.free-electrons.com/source/drivers/usb/serial/ftdi_sio.c, >>>> latest version it's showing is 3.14. It appears that the ftdi_sio code >>>> is largely the same as in 2.6.32, particularly in the >>>> ftdi_set_max_packet_size() function. >>> Lots of things have changed since v2.6.32 and not just in the driver >>> itself but in all the infrastructure it relies on. >>> >>>> I'm trying to verify if the "number of endpoints is 0" is a valid >>>> situation. >>> No, that is not normal, but it should not crash the driver if it's a >>> hardware issue. What is the lsusb -v output of your device (make sure >>> the ftdi_sio driver isn't loaded when connecting the device). >>> >>> And what happens if you plug it into a machine running a recent kernel? >>> >>> Thanks, >>> Johan >> Plugging device into a system running Redhat, kernel 3.3.4 crashes the >> system. > 3.3.4 is still _many_ years old. Please try something from 2014 at the > latest...
Understood Greg; it was the best I had immediately available. I am working on setting up/finding a later kernel at the moment.
thanks
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