<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Hi Aleksander,</div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> I tested your branch with my various modems. T<span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">hey were working properly with and without the ID_MM_HUAWEI_DISABLE_GETPORTMODE udev option.</span></div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> I did not see the serial timeout errors anymore.</div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> the only issue I had with your branch was build failure when cross compiling it. <span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">I'll put the details in your merge request about that.</span></div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Louis-Alexis</div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> ModemManager-devel <modemmanager-devel-bounces@lists.freedesktop.org> on behalf of Louis-Alexis Eyraud <louis-alexis.eyraud@sigfox.com><br> <b>Sent:</b> 12 August 2020 14:10<br> <b>To:</b> Aleksander Morgado <aleksander@aleksander.es><br> <b>Cc:</b> ModemManager (development) <modemmanager-devel@lists.freedesktop.org><br> <b>Subject:</b> Re: Help on an invalid modem case</font> <div> </div> </div> <style type="text/css" style="display:none">  </style> <div dir="ltr"> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> Hi Aleksander,</div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> <br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> cool that the setup has been useful for your debugging <span id="x_🙂">🙂</span></div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> <span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">I have 4 other Huawei models (3 of them are E352 variants) and an Alcatel. </span><span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">I will test your branch this afternoon with these modems and give you some feedback.</span><br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> <br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> Louis-Alexis</div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); background-color:rgb(255,255,255)"> </div> </div> <div id="x_appendonsend"></div> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Aleksander Morgado <aleksander@aleksander.es><br> <b>Sent:</b> 12 August 2020 13:33<br> <b>To:</b> Louis-Alexis Eyraud <louis-alexis.eyraud@sigfox.com><br> <b>Cc:</b> ModemManager (development) <modemmanager-devel@lists.freedesktop.org><br> <b>Subject:</b> Re: Help on an invalid modem case</font> <div> </div> </div> <div class="x_BodyFragment"><font size="2"><span style="font-size:11pt"> <div class="x_PlainText">Hey Louis-Alexis,<br> <br> > sorry for the delay, I was on holiday the past weeks.<br> > I've retrieved the "faulty" 3G modem device from my office. For information, the exact model is Huawei e352u-21 (other e352 variants I tested do not seem to provoke the issue).<br> ><br> > I did a more standard setup at home to reproduce it: a RPI3 with Raspbian, ModemManager compiled from sources and various system configuration tweaks to force broadband management.<br> > The setup also allowed me to verify that in CDC mode, it does not appear.<br> ><br> > If you need to do some debug or test a fix for any of the two bugs you opened, feel free to contact me privately to give you access to this setup.<br> ><br> <br> Thanks for the access to your remote setup, that was very helpful.<br> <br> I've prepared a branch with several changes, including a big<br> GETPORTMODE logic upgrade:<br> <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fmobile-broadband%2FModemManager%2F-%2Fmerge_requests%2F335&data=02%7C01%7Clouis-alexis.eyraud%40sigfox.com%7Ceb0b0f2584bf44b5458c08d83eb8c48c%7Cfcbc8bb1061e4b949f703ad917b0c8d3%7C0%7C1%7C637328310608544242&sdata=zwvudpUwp%2BdYawupgr7xT2S1JUcT8yY1H8T8VtX0Z%2FY%3D&reserved=0" originalsrc="https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/335" shash="QlwOWMbcLWevnnnmVPw3op93eb3Og6Yf3J3GfYBBVnKH3MskYE8EqCrvi8ke6p1/72afTvFDGr//5y1255xv/G1GS7uK+c9xWZt23OcBJ6hr+8xkro69vBaMkcsSzzlXud6m6gaQ8uLCvfLVJW5M3n3+7nUxbGC2nH3t9JcOHLY=">https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fmobile-broadband%2FModemManager%2F-%2Fmerge_requests%2F335&data=02%7C01%7Clouis-alexis.eyraud%40sigfox.com%7Cbacaf731dae04aa2223b08d83eb39687%7Cfcbc8bb1061e4b949f703ad917b0c8d3%7C0%7C0%7C637328288328929987&sdata=dniU3Yh%2BUKCJc6jOMC02yfRLPI50MX0uWUBpsGzEP2k%3D&reserved=0</a><br> <br> This branch should solve the issues you had in the E352, please<br> confirm. Also, if you can test the branch yourself with additional<br> Huawei devices, it would be nice (please grab debug logs while doing<br> so just in case).<br> <br> -- <br> Aleksander<br> <a href="https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Faleksander.es%2F&data=02%7C01%7Clouis-alexis.eyraud%40sigfox.com%7Ceb0b0f2584bf44b5458c08d83eb8c48c%7Cfcbc8bb1061e4b949f703ad917b0c8d3%7C0%7C1%7C637328310608554237&sdata=HX48%2F0wOJjTktpkvYOv06pW5UeezivlA78YmCFgPJIE%3D&reserved=0" originalsrc="https://aleksander.es/" shash="p0kXjUBkLa5NwX9gulajuxL80B9jGlLX1Mln8UJrkjxGV9Rvuf3Zvn8RmkY6Nj6SxgQWVzZYlmR8ZK7oTn6P2g70rcJaJFFpqBjoLk1y/WjNMEnaopYtb6T5G/l6YtnQmF0kcCLdCZYAobwvpyBPNlHfk1gIzVXJNa5r0vvfm2Q=">https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Faleksander.es%2F&data=02%7C01%7Clouis-alexis.eyraud%40sigfox.com%7Cbacaf731dae04aa2223b08d83eb39687%7Cfcbc8bb1061e4b949f703ad917b0c8d3%7C0%7C0%7C637328288328929987&sdata=t%2B9zWk5LtyqymKSw83hk8xEDEFcCXOqkf3sSGPDGvlQ%3D&reserved=0</a><br> </div> </span></font></div> </div> </body> </html>