> The linux-usb-devel mailing list is a good place for questions like
> this.
OK. I've subscribed, and this message is CCed to it.
> > with minicom I've tested that I can access the external modem with
> > the ark3116 USB-to-serial cable, but using wvdial gives these
> > error messages.
> >
> > --> WvDial: Internet dialer version 1.54.0
> > --> Cannot open /dev/ttyUSB0: Cannot get information for serial port.
> > --> Cannot open /dev/ttyUSB0: Cannot get information for serial port.
> > --> Cannot open /dev/ttyUSB0: Cannot get information for serial port.
> >
> > Do you know a workaround until proper IOCTL support has been added
> > to the ark driver?
>
> What ioctls are missing that wvdial wants/needs? If you load the
> usb-serial and ark3116 drivers with the "debug=1" option, you should
> see in the kernel log the messages that show what is needed.
Here it is:
usb-serial.c: serial_ioctl - port 0, cmd 0x5401
ark3116.c: ioctl not supported yet...
usb-serial.c: serial_ioctl - port 0, cmd 0x5401
ark3116.c: ioctl not supported yet...
usb-serial.c: serial_chars_in_buffer = port 0
generic.c: usb_serial_generic_chars_in_buffer - port 0
generic.c: usb_serial_generic_chars_in_buffer - returns 0
usb-serial.c: serial_write_room - port 0
generic.c: usb_serial_generic_write_room - port 0
generic.c: usb_serial_generic_write_room - returns 64
usb-serial.c: serial_ioctl - port 0, cmd 0x541e
ark3116.c: ioctl not supported yet...
usb-serial.c: serial_ioctl - port 0, cmd 0x540b
ark3116.c: ioctl not supported yet...
/usb-serial.c: serial_ioctl - port 0, cmd 0x5402
ark3116.c: ioctl not supported yet...
usb-serial.c: serial_set_termios - port 0
ark3116.c: ark3116_set_termios - port 0
ark3116.c: ark3116_set_termios - nothing to change...
usb-serial.c: serial_ioctl - port 0, cmd 0x5401
ark3116.c: ioctl not supported yet...
usb-serial.c: serial_close - port 0
generic.c: usb_serial_generic_close - port 0
generic.c: generic_cleanup - port 0
generic.c: usb_serial_generic_read_bulk_callback - port 0
generic.c: usb_serial_generic_read_bulk_callback - nonzero read bulk status
received: -2
> Also, you might want to contact the author of that driver, it is not me.
This was my first reaction, but he answered that he doesn't have time
to work on this. :-(
Werner
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