linux内核中关于usb文档说明
#vi xxx/.../qca/src/linux-3.14/drivers/usb/README Here is a list of what each subdirectory here is, and what is contained in them. core/ - This is for the core USB host code, including the usbfs files and the hub class driver ("khubd"). host/ - This is for USB host controller drivers. This includes UHCI, OHCI, EHCI, and others that might be used with more specialized "embedded" systems. gadget/ - This is for USB peripheral controller drivers and the various gadget drivers which talk to them. Individual USB driver directories. A new driver should be added to the first subdirectory in the list below that it fits into. image/ - This is for still image drivers, like scanners or digital cameras. ../input/ - This is for any driver that uses the input subsystem, like keyboard, mice, touchscreens, tablets, etc. ../media/ - This is for multimedia drivers, like video cameras, radios, and any other drivers that talk to the v4l subsystem. ../net/ - This is for network drivers. serial/ - This is for USB to serial drivers. storage/ - This is for USB mass-storage drivers. class/ - This is for all USB device drivers that do not fit into any of the above categories, and work for a range of USB Class specified devices. misc/ - This is for all USB device drivers that do not fit into any of the above categories.
usb文件系统
pon@ubuntu:~/xxx/......./linux-3.14/drivers/usb$ tree -L 1 . ├── atm ├── built-in.o ├── c67x00 ├── chipidea ├── class ├── core ├── dwc2 ├── dwc3 ├── early ├── gadget ├── host ├── image ├── Kconfig ├── Makefile ├── misc ├── modules.builtin ├── modules.order ├── mon ├── musb ├── phy ├── README ├── renesas_usbhs ├── serial ├── storage ├── usb-common.c ├── usb-common.o ├── usb-skeleton.c └── wusbcore