rk3288修改内核生成/dev/ttyUSBX，完成对身份证阅读器的支持

RK3288编译

RK3288开发板上，通过USB转串口的方式，插入身份证阅读器，/dev/ttyUSB无法生成。通过修改内核的方式，完成对身份证阅读器的支持。

解压源码

 cat rpdzkj_rk3288.tgz* | tar -xzvf -

配置USB转串口驱动

在pc电脑上查看设备的usb情况

dmesg

看到如下

看到最后的ch341 就是芯片信息

编译内核

cd kernel
make menuconfig

内置USB转串口内核

勾选USB Winchiphead CH341 Sigle Port Serial Dricer
保存退出

出现错误

menubox.c:(.text+0x10b0): undefined reference to `acs_map'
menubox.c:(.text+0x10b7): undefined reference to `waddch'
menubox.c:(.text+0x114d): undefined reference to `scrollok'
scripts/kconfig/lxdialog/menubox.o: In function `do_scroll':
menubox.c:(.text+0x55): undefined reference to `wrefresh'
scripts/kconfig/lxdialog/menubox.o: In function `print_arrows':
menubox.c:(.text+0x1a4): undefined reference to `wrefresh'
scripts/kconfig/lxdialog/menubox.o: In function `do_print_item':
menubox.c:(.text+0x3a9): undefined reference to `wrefresh'
scripts/kconfig/lxdialog/menubox.o: In function `print_buttons':
menubox.c:(.text+0x4ef): undefined reference to `wrefresh'
collect2: ld returned 1 exit status
make[1]: *** [scripts/kconfig/mconf] Error 1
make: *** [menuconfig] Error 2

解决办法

sudo apt-get install libncurses5-dev

编译Android源码

./make.sh

打包

./mkimage

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