Messages in this thread | | | Date | Mon, 02 Jun 2014 12:09:36 -0400 | From | Mike Remski <> | Subject | Re: ftdi_sio BUG: NULL pointer dereference |
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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.
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