Linux WiFi driver debugging Freescale imx27

Depressed, the previous writing was not saved, and I had to write it again ......

 

A few days ago, I wrote an article about wifi.ArticleSome WiFi driver debugging tools are introduced in detail. problems occurred during the debugging of jiangjian WiFi driver today:

 

The rt3070 chip used by the WiFi module uses usb2. Of course, the corresponding USB driver is needed for support ......

First load the rt3070sta. Ko driver, compile the kernel, select the corresponding module, and make modules. If you don't want to talk about it, ask Baidu ......

 

Then attach the USB driver. This problem is very serious ......

First, select the corresponding USB Module in the kernel and compile the corresponding module driver.

Insmod isp1504_arc.koInsmod ehci-hcd.ko(Both areUSBDriver in)

In insmod isp1504_arc.ko, said Port Pin 8, Port Pin 18 is already reserved. At first, I suspected it was a hardware problem and kept checking the hardware (like a fly without a head ......, I do not know much about the hardware), the multimeter test here, the test over there, the results found that the voltage is ......

Later, under the guidance of senior engineers, I found the software problems and specific problems. I will write more tomorrow ...... Off duty