Jason Andryuk, le jeu. 12 mars 2020 08:55:23 -0400, a ecrit:
> Linux guests wait ~30 seconds when closing the emulated /dev/ttyUSB0.
> During that time, the kernel driver is sending many control URBs
> requesting GetModemStat (5). Real hardware returns a status with
> FTDI_THRE (Transmitter
Linux guests wait ~30 seconds when closing the emulated /dev/ttyUSB0.
During that time, the kernel driver is sending many control URBs
requesting GetModemStat (5). Real hardware returns a status with
FTDI_THRE (Transmitter Holding Register) and FTDI_TEMT (Transmitter
Empty) set. QEMU leaves them
