On Wed, 2019-09-11 at 16:22 +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 Mittwoch, den 11.09.2019, 12:39 +0000 schrieb Joakim Tjernlund: > > Every now and then my ttyACM0 hangs up or sends a BREAK char to my device. > > I am trying to make ttyACM ignore incoming(over USB) and not emit > > any BREAK automatically using termios (IGN_BRK) but that does not make a > > difference. > > > > Is BREAK handling unimpl. in ttyACM ? > > acm_send_break() implements it.
Yes, I se that funktion but I don't see how one can ignore received BREAKs If I set IGN_BRK on /dev/ttyACM0 I expect that every BREAK should just be ignored > But the support is optional in ACM devices. > > What is bmCapabilities in sysfs for your device? I found one bmCapabilities in sysfs: cat /sys/devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.3/1-6.3:1.1/bmCapabilities 2 Locks like my device Jocke
