Neoway n720 (mPCIe version) - uqmi hangs

Saurabh Chakrabarti saurabhchakrabarti at
Mon Nov 13 08:14:03 UTC 2017


I'm trying to get the following modules to work:

Quectel EC25-E (mPCIe version) - works without any problem
Neoway n720 (mPCIe version) - no response from uqmi frequently

These modules are connected to a raspberry pi based device. This device
works on openWRT chaos calmer 15.05(kernel 4.4.7)

I have added the following series of Bjørn Mork's patches for this to work
for quectel EC25 - [PATCH
0/6] net: qmi_wwan: MDM9x30 support - [PATCH
1/6] net: qmi_wwan: MDM9x30 specific power management - [PATCH
2/6] net: qmi_wwan: remove 1199:9070 device id - [PATCH
3/6] usbnet: allow mini-drivers to consume L2 headers - [PATCH
4/6] net: qmi_wwan: support "raw IP" mode - [PATCH
5/6] net: qmi_wwan: document the qmi/raw_ip sysfs file - [PATCH
6/6] MAINTAINERS: add qmi_wwan driver entry - [PATCH
net-next] net: qmi_wwan: should hold RTNL while changing netdev type

I have also added the relevant vendorid and productid changes for neoway

Quectel EC25-E works perfectly. For neoway n720, the device well works
sometimes, and i'm able to connect to internet. But sometimes uqmi commands
just hang(no output and the terminal gets stuck on the command). I don't
see any kernel error logs too.

Is there something that I can do to fix this issue. Did anyone face the
uqmi hanging issue in other similar modules? Is there any way to debug this?

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