On Sat, Jul 12, 2014 at 5:33 PM, Peter Stuge <pe...@stuge.se> wrote:
> As a data point you could compare the userspace approach with libftdi1.

Good idea!  I've started working on that, though I can't seem to make
it work at all yet.  I'll keep beating on that.

Meanwhile I noticed that with kernel 3.15.4 I am getting log messages
when the ftdi_sio input gets stuck, which I didn't seem to get
previously when I was using 3.14.4.  Whenever it happens I get two
messages:

Jul 12 18:32:44 p1 kernel: ftdi_sio ttyUSB0:
usb_serial_generic_read_bulk_callback - urb stopped: -32
Jul 12 18:32:44 p1 kernel: ftdi_sio ttyUSB0:
usb_serial_generic_read_bulk_callback - urb stopped: -32

Any idea what can cause a "urb stopped"?

Thanks!
Eric
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to