On Thu, 2013-08-15 at 03:47 -0500, Peter Hyman wrote: > On 08/14/2013 06:03 PM, Dan Williams wrote: > snip... > > It's almost certainly not the domain of the driver to switch this mode, > > it's the responsibility of userland. Kernel drivers must only talk to > > the device, they are not supposed to do any kind of policy or switching. > > Also, it would have to be a choice to switch, since some users may > > already be using the out-of-tree Beceem WiMAX stack and drivers and we > > can't screw it up for them. > > > > It's possible that we could determine the current mode via the > > proprietary QCDM using the "modepref" tool from ModemManager sources: > > > > http://cgit.freedesktop.org/ModemManager/ModemManager/tree/libqcdm/tests > > > > but QCDM has no "WIMAX" option that I'm aware of, so I'd be quite > > curious to see what modepref reports when the device is in 4G-only mode. > > I've attached an x86_64 build of modepref, give it a shot on ttyUSB1, > > ttyUSB2, or ttyUSB3 and see what comes out: > > > > modepref /dev/ttyUSB1 --debug > > > > Thanks, > > Dan > I ran modepref in both 3G and 4G modes. Output attached. They look > identical to me. Anything stand out? Nothing, except that QCDM doesn't appear to know anything about the mode here. There must be some other mechanism that controls the 3G/4G mode stuff, can you send me the traces you sent Bjorn so I can see if anything there looks interesting? 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
