用USB转串口线从开发板的USB插口里解出来后应该是用交叉串口线还是用直通串口线？

用USB转串口线从开发板的USB插口里解出来后应该是用交叉串口线还是用直通串口线？目前我手上有直通的串口线，是这样接的：两条USB转串口线分别接PC和开发板，两条转接线中间接的是母对母的直通串口线！开饭吧上的USB口我已经重新编译过了！提示如下：
usb 1-1: new full speed USB device using s3c2410-ohci and address 3
usb 1-1: configuration #1 chosen from 1 choice
ch341 1-1:1.0: ch341-uart converter detected
usb 1-1: ch341-uart converter now attached to ttyUSB0