root/rt-thread @ 7bf66488537c3c8fe89bc74fd32cea23fe44e2f6

jonas 6d4764ad69 serial_v2 rt_device_write/read return data type as rt_ssize_t		%!s(int64=2) %!d(string=hai) anos
..
SConscript	5ac5d92cbb [serial] 优化发送非阻塞时，serial_close未执行rt_completion_done的问题。	%!s(int64=4) %!d(string=hai) anos
serial.c	f58d3c5200 rt_device_write/read return data type as rt_ssize_t	%!s(int64=3) %!d(string=hai) anos
serial_v2.c	6d4764ad69 serial_v2 rt_device_write/read return data type as rt_ssize_t	%!s(int64=2) %!d(string=hai) anos