mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-03-27 09:34:30 -04:00
c287322c3a
Pull USB driver update from Greg KH: "Here's the big USB driver update for 3.13-rc1. It includes the usual xhci changes, EHCI updates to get the scheduling of USB transactions working better, and a raft of gadget and musb updates as well. All of this has been in linux-next for a while with no reported issues" * tag 'usb-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (305 commits) USB: Maintainers change for usb serial drivers usb: usbtest: support container id descriptor test usb: usbtest: support superspeed device capbility descriptor test usb: usbtest: support usb2 extension descriptor test usb: chipidea: only get vbus regulator for non-peripheral mode USB: ehci-atmel: add usb_clk for transition to CCF usb: cdc-wdm: ignore speed change notifications USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications usbatm: Fix dynamic_debug / ratelimited atm_dbg and atm_rldbg macros printk: pr_debug_ratelimited: check state first to reduce "callbacks suppressed" messages usb: usbtest: support bos descriptor test for usb 3.0 USB: phy: samsung: Support multiple PHYs of same type usb: wusbcore: change WA_SEGS_MAX to a legal value usb: wusbcore: add a quirk for Alereon HWA device isoc behavior usb: wusbcore: combine multiple isoc frames in a single transfer request. usb: wusbcore: set the RPIPE wMaxPacketSize value correctly usb: chipidea: host: more enhancement when ci->hcd is NULL usb: ohci: remove ep93xx bus glue platform driver usb: usbtest: fix checkpatch warning as sizeof code style UWB: clean up attribute use by using ATTRIBUTE_GROUPS() ...
To understand all the Linux-USB framework, you'll use these resources:
* This source code. This is necessarily an evolving work, and
includes kerneldoc that should help you get a current overview.
("make pdfdocs", and then look at "usb.pdf" for host side and
"gadget.pdf" for peripheral side.) Also, Documentation/usb has
more information.
* The USB 2.0 specification (from www.usb.org), with supplements
such as those for USB OTG and the various device classes.
The USB specification has a good overview chapter, and USB
peripherals conform to the widely known "Chapter 9".
* Chip specifications for USB controllers. Examples include
host controllers (on PCs, servers, and more); peripheral
controllers (in devices with Linux firmware, like printers or
cell phones); and hard-wired peripherals like Ethernet adapters.
* Specifications for other protocols implemented by USB peripheral
functions. Some are vendor-specific; others are vendor-neutral
but just standardized outside of the www.usb.org team.
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.