驱动编写问题

yihe_guo

本人在编写驱动程序时，经常需要边查看运行结果，后再修改源程序，这时如果直接rmmod 会提示设备忙，想请问各位高手，如何能不重新启动计算机，就能再次编译后加载模块？

Dragonfly

i suggest u to use the UML if possible. search this forum to check the UML post I posted before.

if u module reference count is not 0, u can not rmmod. kernel development can not have dynamic compiling at least till now.

超级用户

of coures if <used> flag is set(!=unused),mod canNOT be remod.

check Ur driver-code.

ttjswdy

请问二楼,您说的"dynamic compiling" 是什么意思，是动态编译吗？为什么内核程序不能动态编译

Dragonfly

what i mean is to recompile the part of the code u changed during runtime and execute new instructions directly.

prox2004

记不清了,
我在linux2.2,好像修改
1)加载的设备程序名xxx.o改为xxx1.o
2)register_chrdev(SOUND_MAJOR, "sound", &soundcore_fops);"sound"这个东东要不要改,记不得了.

试试,应该可以insmod xxx1.o, 不用管rmmod xxx.o成功与否.