Hi Greg, All of them are the same model (AC2726), device ID is 19d2:fff1. Moving just that one line fixes my problem. Regards, Dmitry -----Original Message----- From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] Sent: Monday, November 25, 2013 6:28 PM To: Dmitry Kunilov Cc: linux-usb@xxxxxxxxxxxxxxx Subject: Re: zte_ev not properly handling ZTE AC2726 CDMA modems On Mon, Nov 25, 2013 at 06:15:28PM -0800, Dmitry Kunilov wrote: > Hi everyone, > > As a late follow-up to the discussion that happened in June about > moving support for most ZTE CDMA devices from option.c to zte_ev.c > (where the decision was to "convert and see if anyone complains"), I'd > like to complain > :) > > We have a park of approximately thirty ZTE AC2726 EVDO modems > connected to Broadcom-based routers running Linux-mips. After recent > upgrade from ancient > 2.6.22 to relatively modern 3.9.11, all 30 are having the same > problem: pppd connects and Internet access works for 20 to 60 seconds, > then connectivity drops and pppd logs an LCP timeout. After that, pppd > is able to restart the connection and run for another 20-60 seconds. > > I did notice that these modems are now handled by zte_ev instead of > option, so I went and moved all the DEVICE_INFO's back from zte_ev.c > to option.c and also disabled zte_ev module in the kernel > configuration. After this change, the modems work just fine, like they > did on 2.6.22 - using the option driver. > > Please let me know if there is any debug info I can collect to help > resolve this issue. What are the device ids of your devices that you needed to move back to the option driver? thanks, greg k-h -- 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
