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<div class="moz-cite-prefix">Hi Heni,<br>
On 01/11/2017 09:48 AM, heni wael wrote:<br>
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<div>Good day every body<br>
<br>
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I have some issues trying to connect internet with the
Sierra MC7455 modem <br>
<br>
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<div>I used the qmi_wwan driver provided by linux kernel
(3.10.0-514.2.2) on centos 7 <br>
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<div>and cant connect using qmicli and qmi-network tools<br>
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<div>I saw in the documentation of this device that it
support only raw ip mode <br>
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<div>i ask if the qmi_wwan provided by this kernel version
support this mode or not<br>
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To support raw-ip mode in qmi_wwan driver, you will need patches in
this driver and in drivers/net/usb/usbnet.c done by Bjorn Mork.<br>
They are in vanilla kernel 4.5. I assume they are not in your
kernel.<br>
The patches I have applied (on my 4.1 kernel):<br>
net: qmi_wwan: MDM9x30 specific power management<br>
net: qmi_wwan: support "raw IP" mode<br>
net: qmi_wwan: should hold RTNL while changing netdev type<br>
net: qmi_wwan: ignore bogus CDC Union descriptors<br>
usbnet: allow mini-drivers to consume L2 headers<br>
<br>
You will also need a quite recent libqmi package. I assume at least
1.14.0 to have this patch (from Aleksander Morgado):<br>
qmi-network: if kernel allows updating LLP, prefer device-reported
LLP<br>
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And other thing <br>
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I Blacklisted the qmi_wwan used GobiKernel and GobiSerial
drivers provided by Sierra but cant connect to qmi interface
at all using qmi-cli<br>
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<div>(qmicli -d /dev/qcqmi0 --dms-get-manufacturer<br>
[11 ينا 2017, 03:08:31] -Warning ** Error reading from
istream: Error reading from file descriptor: Invalid request
descriptor<br>
error: couldn't create client for the 'dms' service: CID
allocation failed in the CTL client: Device must be open to
send commands<br>
)<br>
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Can any Help me <br>
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Thanks<br>
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<p>Christophe<br>
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