Hi Cedric, and thank you for your feedback. I managed grabbing time to patching this CDC_NCM_FLAG_NDP_TO_END feature in linux-ti-staging 4.1 kernel. I found a patch ( https://dev.openwrt.org/browser/trunk/target/linux/generic/patches-4.1/190-cdc_ncm_add_support_for_moving_ndp_to_end_of_ncm_frame.patch?rev=46493) doing this on mainline 4.1 kernel. Unfortunately linux-ti-staging has one more kernel symbol exported in the files patched in this patch. Therefore, I could not use it directly. However, even though I think I got the feature patched properly, there was no change in operation (in spite of the kernel module load messages). In fact, it was told in the patch comment that: "This change has been tested and working with a Huawei E3131 device (which works regardless of NDP position)". So, result was not too big surprise to me. Unfortunately problem is still active if anyone has more fresh thoughts. Thanks, Matti
2016-01-23 22:32 GMT+02:00 CedrIc Jehasse <[email protected]>: > Hi, > > > Executing ifconfig wwan0 up;dhclient wwan0 can't get lease from wwan0 > interface. > > > I’ve had issues with an E3372 that didn’t accept cdc ncm frames from the > linux cdc_ncm driver. Maybe there’s the same issue on the E3131, causing > dhcp to fail. I see it’s been worked around since linux kernel v4.2 by > adding the flag CDC_NCM_FLAG_NDP_TO_END to the cdc_ncm driver. > > Cedric > _______________________________________________ > ofono mailing list > [email protected] > https://lists.ofono.org/mailman/listinfo/ofono >
_______________________________________________ ofono mailing list [email protected] https://lists.ofono.org/mailman/listinfo/ofono
