On Monday 31 January 2011 21:06:27 Hans Petter Selasky wrote: > On Monday 31 January 2011 20:59:21 Peter Jeremy wrote: > > I use a Huawei E176 on FreeBSD 8.1 for portable 3G connectivity. > > Occasionally, ppp(8) reports: > > Phase: deflink: read (2): Got zero bytes > > Phase: deflink: open -> lcp > > and ppp(8) brings the link down. Trying to restart the link shows > > that the E176 still thinks the link is up (entering 'term' and then > > '~p' restores connectivity). grog@ has similar problems with an E1762. > > > > Can anyone suggest why u3g(4) is incorrectly reporting EOF to an > > application? > > Hi, > > Try enabling u3g debugging. > > sysctl hw.usb.u3g.debug=15 > > This might require compiling a kernel having: > > options USB_DEBUG > > Maybe the zero length data comes from USB. Else it is a TTY problem.
Reference: sys/dev/usb/serial/usb_serial.c:ucom_put_data() There is already a check there for zero length data, so I guess the problem is in the TTY layer. --HPS _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"