Johan Hovold <jo...@kernel.org> wrote: > > > > The usbmon traces seem to be a continual reporting of the "0x0160" shown > > in the ftdi_get_modem_status lines. Is this actually _meant_ to be > > happening? Can I turn it off? Any other suggestions? > > This is the device reporting the modem and line status every > millisecond. You can increase the interval by clearing the low_latency > flag and setting a even higher value than the otherwise default 16ms > period through sysfs. > > Note that this also means that any data received will not necessarily be > forwarded every millisecond either anymore. >
Ok, I've now seen that this is actually happening with my ftdi ft232 devices on desktop linux too [1], but not for my cp210x, and not for a ch341 device If I'm not interested in modem status, can I disable this entirely? I don't even have modem lines connected. Sincerely, Karl Palsson [1] I had been capturing on the wrong usb interface before, my bad :(
