On Mon, 2020-05-25 at 17:02 +0200, Oliver Neukum wrote: > CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. > > > Am Montag, den 25.05.2020, 14:46 +0000 schrieb Joakim Tjernlund: > > > This (EMI?) disconnect causes 2 things. > > 1) I loose the TTY temporarily and have to reconnect. > > Unfortunately I see no way to reestablish contact transparantly > on the level of the driver. > > > 2) After reconnect there are garbage chars on the gadget side, such as: > > h�^@^@� ^@^@� ^@ > > This looks like MM is acting up in user space. > > > or > > X���)H��4Ğ^��� > > which causes confusion on for the tty/bash on the gadget. > > > > The disconnect is mostly just annoying but the garbage chars are a major pain, one cannot trust > > that cmds are understod. Is there a bug in ttyACM driver causing these? > > Hi, > > thanks for the bug report. The most likely cause of your problem is > ModemManager probing the new device. It has a blacklist. No, I have already blacklisted this device from modemmanger, is blacklist not reliable in this case? Jocke
