On Fr, 2019-01-04 at 12:21 +0100, Andreas Färber wrote: > Switch from tty_port_register_device() to tty_port_register_device_serdev() > and from tty_unregister_device() to tty_port_unregister_device(). > > On removal of a serdev driver sometimes count mismatch warnings were seen: > > ttyACM ttyACM0: tty_hangup: tty->count(1) != (#fd's(0) + #kopen's(0)) > ttyACM ttyACM0: tty_port_close_start: tty->count = 1 port count = 0 > > Note: The serdev drivers appear to probe asynchronously as soon as they > are registered. Should the USB quirks in probe be moved before registration? > No noticeable difference for the devices at hand. That is quite drastic a change. Johan, how complete in terms of features is serdev? Are you refering to CLEAR_HALT_CONDITIONS in terms of quirks? Regards Oliver