> tty_port_close_start when the port has not been initialised (successfully > opened). This was previously only done for wait_until_sent but there's > no reason to call flush_buffer or to honour port drain delay either. > The latter could cause a failed open to stall for up to two ...
>> - port->tty = NULL; >> spin_unlock_irqrestore(&port->lock, flags); >>> + tty_port_shutdown(port, port->tty); >> >> What prevents port->tty to be NULL here already? > > Nothing. That's why it's tested in tty_port_shutdown() above. I know :). But the question is...
"Arduino: Upload" works perfectly, but opening the serial port causes the following error: Failed to open serial port /dev/ttyUSB0 due to error: + TypeError: Cannot read property 'close' of null This is not a permission issue. I put my ttyUSB0 ad chmod 777 to troubleshoot, the proble...
Re: 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2这是烧写TF卡时的更改: 这是更改后系统运行后的显示: 若不将console::respawn:/sbin/getty -L console 0 vt100 # GENERIC_SERIAL替换为ttyS1::respawn:/sbin/getty -L ttyS1 115200 vt100 # GENERIC_SERIAL的话,...
Re: 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2这是烧写TF卡时的更改: 这是更改后系统运行后的显示: 若不将console::respawn:/sbin/getty -L console 0 vt100 # GENERIC_SERIAL替换为ttyS1::respawn:/sbin/getty -L ttyS1 115200 vt100 # GENERIC_SERIAL的话,...
> > spin_unlock_irqrestore(&port->lock, flags); > > > + tty_port_shutdown(port, port->tty); > > > > What prevents port->tty to be NULL here already? > > Nothing, I'll get a new reference within the port lock section as you ...