ZTE MF636 USB u3g modem

[Nick Hibma]

> u3g0: <ZTE, Incorporated ZTE CDMA Technologies MSM, class 0/0, rev
> 2.00/0.00, addr 2> on uhub1
> u3g0: changing CMOTECH modem to modem mode
> u3g0: sent command to change to modem mode
> u3g0: failed to read back CSW: 13
> u3g0: at uhub1 port 2 (addr 2) disconnected
> u3g0: detached
> ucom0: <ZTE, Incorporated ZTE CDMA Technologies MSM, class 0/0, rev
> 2.00/0.00, addr 2> on uhub1
> ucom0: port=0 iface=3 in=0x85 out=0x4
> ucom0: configured 1 serial ports (U0.%d)

This is the real port. Could you dump the descriptors after unloading the 
driver and loading ugen?

> ucom1: <ZTE, Incorporated ZTE CDMA Technologies MSM, class 0/0, rev
> 2.00/0.00, addr 2> on uhub1
> ucom1: configured 0 serial ports (U1.%d)
> ucom2: <ZTE, Incorporated ZTE CDMA Technologies MSM, class 0/0, rev
> 2.00/0.00, addr 2> on uhub1
> ucom2: configured 0 serial ports (U2.%d)

These two are not actually com ports. They are probably umass related, but 
attached to by u3g instead.

Nick