File still Updating.... many errors have been FOUND , need big change qnx i2c structure --written by jlm MSM8996AU/APQ8096AU has two BLSP blocks. Each block includes six Qualcomm® UniversalPeripheral (QUP) and six UART cores.Bus Access Module (BAM)
参考: http://www.siongboon.com/projects/2013-07-08_raspberry_pi/index.html Raspberry Pi Get started with Raspberry Pi (RPi), a step by step approach to get your Raspberry Pi with low level electronics hardware control. Make simple, step by step
953行,适配器的编号大于MAX_ID_MASK是不行的,MAX_ID_MASK是一个宏,展开后的值为61. 957至968行,关于管理小整形ID数的,没怎么了解,略过. 974行,调用i2c_register_adapter函数注册IIC适配器,下面是它的定义: static int i2c_register_adapter(struct i2c_adapter *adap) { ; /* Can't register until after driver model init */ if (
嵌入式Linux设备驱动程序:用户空间中的设备驱动程序 Embedded Linux device drivers: Device drivers in user space Interfacing with Device Drivers Device drivers in user space 用户空间中的设备驱动程序 在开始编写设备驱动程序之前,请暂停片刻,考虑是否确实有必要.对于许多常见类型的设备,有通用的设备驱动程序,允许您直接从用户空间与硬件交互,而不必编写一行内核代码.用户空间代码