Compliance testing is a step-by-step test that the PC industry must conduct to meet the requirements of mass production of PCs and comply with relevant electrical performance indicators. The above is ...
I am debugging a voice driver, the voice codec is cp1306. In the open function, I applied for a DMA channel, and in the read/write function, I waited for interruptible_sleep_on(&ssi_rwait); When DMA i...
The chief engineer gave me a Protel99 component package file with the suffix ddb. I referred to the method at this URL [url]https://wenku.baidu.com/view/2f4ac2d13186bceb19e8bb93.html[/url] But when I ...
I'm new to driver development. My boss wants me to write a driver for an ISA card, mainly to read the data on the card. I'll use DDK to develop it. (I can't use Driver Stuidio or something like that, ...