On Fri, 2012-06-22 at 19:10 +0200, Bjørn Mork wrote: > Dan Williams <dcbw@xxxxxxxxxx> writes: > > > I'll do some Windows traces to see if it does use QMI on the Ethernet > > endpoints. I know it doesn't do QMI on any of the serial interfaces > > (ff/ff/ff) based on the Windows drivers. I could be completely wrong, > > but I'm really expecting QMI on this device, given that it's a MDM9600. > > The firmware doesn't need to export a QMI interface even if the chip > supports it. The Sierra Wireless MC77xx modules in Direct IP mode are > good examples of this. And I believe the same goes for most (all?) of > the Sierra Wireless LTE USB sticks. I assume they use MDM9200 or > MDM9600 chips, but only support Sierras Direct IP protocol with HIP > embedded in CDC instead of QMI. > > There is of course always the possibility that the device can be > switched into a "dumber" mode where QMI is available. But you'll > probably need a hint from the vendor to find out how that can be done, > if at all possible. Obviously, but I more meant that in the absence of some vendor proprietary protocol like HIP, I have to believe the device does QMI. I know the AT command set of this device is somewhat limited, and the only other serial ports are DM ports and GPS, and DM/DIAG isn't extremely useful with LTE devices because it's been largely replaced by QMI. Thus, I expected to find a QMI interface somewhere. And it has one. Dan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
