I want to write a USB printer driver for embedded device. I want to print results for my device. I am looking for free USB host stack which supports printer class. Also pseudo/sample code for it. Where should i start from, I am new to this.
I'm confused, you want to write this, or you want someone else to do it? Not sure it is a sustainable business model, perhaps you need to look at commercial stacks?
If there is free stuff like this falling from the sky, a quick Google should find you something.