A bit more analysis on this: When the smartphone is connected, 2 USB serial lines are created (ttyUSB0 and ttyUSB1). But the first line (ttyUSB0) has no bulk in/out, only an interupt in support. Therefore no read_urb/write_urb are associated to this line. On the opposite the second line (ttyUSB1) has a bulk in/out but no interrupt support.
By default we use ttyUSB0 but the ipaq_open() code in ipaq.c assumes that the port used has a read_urb/write_urb and will segfault (causing the OOPS reported here) if this is not the case. I tried to use the second line (ttyUSB1) but for some reason the ipaq_open is not called on this one and the pppd daemon will fail to read anything from the device and exit. In any case it sounds the code in ipaq_open() should not make assumptions about the read_urb/write_urb being initialized as it happens they are not in my case. -- [Gutsy] Kernel Oops after calling synce-serial-start https://bugs.launchpad.net/bugs/138583 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
