• Home
  • Computers
  • Bootstrap Yourself with Linux-USB Stack: Design, Develop, Debug, and Validate Embedded USB Systems

Bootstrap Yourself with Linux-USB Stack: Design, Develop, Debug, and Validate Embedded USB Systems

By Rajaram Regupathy

Learn how to layout, boost, and validate USB platforms very easily, utilizing this worthwhile source that offers an in depth bootstrap consultation at the Linux-USB layout and implementation. BOOTSTRAP your self WITH LINUX-USB STACK deals a journey of the Linux-USB stack, explaining tips to strengthen drivers for USB machine and host controllers on Linux. It strikes directly to discover the interfaces and knowledge constructions of a USB module with UML diagrams, concluding every one bankruptcy with a pattern implementation that applies the knowledge simply coated. A finished examine some of the instruments and strategies to be had on Linux to validate a USB procedure is usually supplied. utilizing a simple writing kind, this booklet is a robust instrument for a person studying to advance a protocol stack with right structure and layout, finally resulting in larger caliber, maintainability, and testability.

Show description

Quick preview of Bootstrap Yourself with Linux-USB Stack: Design, Develop, Debug, and Validate Embedded USB Systems PDF

Show sample text content

Miscellaneous Host Drivers Linux USB equipment Subsystem . precis . . . . . . . . . . . . . . . . extra examining . . . . . . . . . . . . half I bankruptcy four . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 32 35 forty forty-one forty seven forty seven Linux USB Host motive force . . . . . . . . . . . . . . . . . . . . . . . . . . . fifty one . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . fifty one fifty two fifty two fifty three fifty three fifty three fifty five fifty five fifty five USB gadget Notification .

Org/ developers/docs/. The specification defines the implementation information of the USB bus interface layer and the USB logical layer. The functionality layer implementation is out of the scope of USB specification and is outlined because the USB type specification on hand at http://www. usb. org/developers/devclass/. 27 This web page deliberately left clean Chapter three review of the Linux USB Subsystem during this bankruptcy n Linux USB Host Subsystem n Linux USB equipment Subsystem The Linux kernel resource tree is a fancy set of resource codes, which the kernel organizes in separate folder hierarchies according to their functionalities.

Energy administration . . . . . . . . . . . . . . . . . . OUT move . . . . . . . . . . . . . . . . . . . . . . . IN move . . . . . . . . . . . . . . . . . . . . . . . . . machine motive force: Implementation . . . . . . . . . . . . precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . extra studying . . . . . . . . . . . . . . . . . . . . . . . . . bankruptcy 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 162 164 168 a hundred and seventy one hundred seventy 171 171 172 173 176 176 178 179 183 183 type driving force .

Occasionally, despite the fact that, USB controllers deviate from those requirements and require separate drivers. In a platform, USB host controllers develop into glued to the platform utilizing interfaces corresponding to PCI or normal function Input/Output (GPIO). hence, the HCDs are built on best of those PCI drivers or platform drivers. when you increase the motive force for the glue, you should use the already-implemented HCI drivers (perhaps the EHCI driving force) and reduce the advance attempt. extra examining you could receive additional information on EHCI and UHCI from http://www.

The next move is to 179 180 bankruptcy thirteen n device motive force enforce the exported interface services, specifically the usb_gadget_register_ motive force and the usb_gadget_unregister_driver. the former part illustrated the series of task of those interface capabilities. The usb_gadget_ register_driver as illustrated in determine thirteen. 2 is liable for binding the equipment motive force and powering up the device controller. additionally, be aware that the struct usb_gadget_driver item handed to the usb_gadget_register_driver by means of the sensible driving force should still help uncomplicated callbacks— bind and setup —for the device driving force to be practical.

Download PDF sample

Rated 4.28 of 5 – based on 7 votes