Which module are you using?
i have several different module, include EM7511, MC7430, EM7455
What value before you config?
each module have different setting, for example MC7430 is “10D”
i won’t config it, if it is function well.
but some how the config value seems changed by different driver.
such as windows driver or qmi driver. and it caused the ttyUSB* disappear.
because of the ttyUSB* disappear i won’t be able to recover the config value.
What value are you setting in at! usbcomp
after this issue happened, i found the only solution is to set the original setting under windows system.
i don’t know why, but it works!
although it can be fixed by this way, it still caused a lot of time doing this, i’m hoping there is some other solution under linux system