为了创建这个延迟,我的驱动程序使用内核的udelay函数。具体来说,有一项呼吁呼吁尤德莱(90):iowrite32(trig, addr + CONTROL_OFFSET);
iowrite32(trig, addr + CONTROL_OFFSET);
udelay(90); // This is the problematic call据我所知,文档指出,udelay至少
built-in.o: In function `gem_rxmac_reset':clkdev.c:(.text.unlikely+0x7244): undefined reference to `__umoddi3'--- a/include/linux/time.h
+++ b/include/