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4G模块驱动出错求助



问下大家,我的内核是2.6.12的,我的遇到的问题是lsusb,回车,屏幕什么都没输出,在我连接4G模块后,也打印出了什么ttyUSB0 1 2了,但是实际dev下并没有,我收到创建节点后,打开ttyUSB0和1正常,0可以发数据,如果我发ATZ\r\n,返回好多AAAAAAAAAAAA。。。ATZ\r\n  ERROR         ,打开ttyUSB2直接崩溃,我命令用的cat ttyUSBx & echo "ATZ\r\n" >>/dev/ttyUSBx 。出错的打印在附件中