MC7455/EM7455 dependencies and protocols

Tim Harvey tharvey at
Tue Mar 21 22:23:28 UTC 2017

On Tue, Mar 21, 2017 at 9:13 AM, Aleksander Morgado
<aleksander at> wrote:
> On Tue, Mar 21, 2017 at 4:04 PM, Dan Williams <dcbw at> wrote:
>>> root at ventana:~# qmicli -d /dev/cdc-wdm0 --dms-get-ids
>>> [21 Mar 2017, 14:00:22] -Warning ** Error reading from istream: Error
>>> reading from file descriptor: Input/output error
>>> error: couldn't create client for the 'dms' service: CID allocation
>>> failed in the CTL client: Transaction timed out
>> Aleksander was running into a similar issue with 73XX devices, let's
>> see how that plays out.
> But I didn't see the problem on MC7455; not a single time :/ Can't
> confirm it's the same issue.

Looks like I had a bad modem. I had a 2nd MC7455 and it seems to
behave just fine.

I have found that this modem (or Google Fi carrier I was testing
with?) is not supporting DHCP but using 'qmicli -d /dev/cdc-wdm0
--client-no-release-cid --client-cid=35 --wds-get-current-settings' to
obtain the IPv4 settings and manually configuring them worked fine.

Thanks for all the help!


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