This series add supports for line-status events that specifically can be used to detect parity errors. The implementation relies on the device's event-insertion mode, which can also be used to detect line-breaks and modem status changes. But as this doesn't seem to work as expected on CP2102, support has been left unimplemented for now. Included are also a couple of cleanups. Johan Changes since RFC [1]: - drop sysrq support which relies on break detection - use 0xec (instead of 0xff) as escape character [1] https://lore.kernel.org/r/20200703150104.GE3453@localhost Johan Hovold (5): USB: serial: cp210x: disable interface on errors in open USB: serial: cp210x: add support for line-status events USB: serial: cp210x: add support for TIOCGICOUNT USB: serial: cp210x: drop unnecessary packed attributes USB: serial: cp210x: use in-kernel types in port data drivers/usb/serial/cp210x.c | 209 ++++++++++++++++++++++++++++++++++-- 1 file changed, 201 insertions(+), 8 deletions(-) -- 2.26.2
