Summary

With the wide range of devices that need to be smartly and smoothly supplied, this chapter can be relied on to take care of their power supply management. PMIC devices usually sit on SPI or I2C buses. Having already dealt with these buses in previous chapters, you should be able to write any PMIC driver. Let's now jump to the next chapter, which deals with framebuffer drivers, which is a completely different and no less interesting topic.