摘要：
在看usb驱动时发现一个这样的结构体数组1 struct usb_device_id usb_storage_usb_ids[] = {2 # include "unusual_devs.h"3 { } /* Terminating entry */4 }; 其中结构体usb_device_id定义如下： 1 struct usb_device_id { 2 /* which fields to match against? */ 3 __u16 match_flags; 4 5 /* Used for product... 阅读全文
摘要：
The IOMUX controller contains four sets of registers that affect the i.MX53 registers, as follows:• General-purpose registers (IOMUXC_GPRx)—consist of three registers that control PLLfrequency, voltage, and other general purpose sets.• “Daisy Chain” control registers (IOMUXC_<Instance_port>_SE 阅读全文