linux-toradex.git/include/linux/usb.h, branch v3.19-rc5

USB / PM: Drop CONFIG_PM_RUNTIME from the USB core

2014-12-03T23:51:54+00:00

After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so quite a few
depend on CONFIG_PM (or even dropped in some cases).

Replace CONFIG_PM_RUNTIME with CONFIG_PM in the USB core code
and documentation.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Alan Stern 
Acked-by: Greg Kroah-Hartman

usb: Add LED triggers for USB activity

2014-09-25T15:05:12+00:00

With this patch, USB activity can be signaled by blinking a LED. There
are two triggers, one for activity on USB host and one for USB gadget.

Both triggers should work with all host/device controllers. Tested only
with musb.

Performace: I measured performance overheads on ARM Cortex-A8 (TI
AM335x) running on 600 MHz.

Duration of usb_led_activity():
- with no LED attached to the trigger:        2 ± 1 µs
- with one GPIO LED attached to the trigger:  2 ± 1 µs or 8 ± 2 µs (two peaks in histogram)

Duration of functions calling usb_led_activity() (with this patch
applied and no LED attached to the trigger):
- __usb_hcd_giveback_urb():    10 - 25 µs
- usb_gadget_giveback_request(): 2 - 6 µs

Signed-off-by: Michal Sojka 
Acked-by: Felipe Balbi 
Tested-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

USB: separate usb_address0 mutexes for each bus

2014-05-27T23:11:49+00:00

This patch creates a separate instance of the usb_address0 mutex for each USB
bus, and attaches it to the usb_bus device struct. This allows devices on
separate buses to be enumerated in parallel; saving time.

In the current code, there is a single, global instance of the usb_address0
mutex which is used for all devices on all buses. This isn't completely
necessary, as this mutex is only needed to prevent address0 collisions for
devices on the *same* bus (usb 2.0 spec, sec 4.6.1). This superfluous coverage
can cause additional delay in system resume on systems with multiple hosts
(up to several seconds depending on what devices are attached).

Signed-off-by: Todd Brandt 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2014-04-02T00:06:09+00:00

Pull USB patches from Greg KH:
 "Here's the big USB pull request for 3.15-rc1.

  The normal set of patches, lots of controller driver updates, and a
  smattering of individual USB driver updates as well.

  All have been in linux-next for a while"

* tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (249 commits)
  xhci: Transition maintainership to Mathias Nyman.
  USB: disable reset-resume when USB_QUIRK_RESET is set
  USB: unbind all interfaces before rebinding any
  usb: phy: Add ulpi IDs for SMSC USB3320 and TI TUSB1210
  usb: gadget: tcm_usb_gadget: stop format strings
  usb: gadget: f_fs: add missing spinlock and mutex unlock
  usb: gadget: composite: switch over to ERR_CAST()
  usb: gadget: inode: switch over to memdup_user()
  usb: gadget: f_subset: switch over to PTR_RET
  usb: gadget: lpc32xx_udc: fix wrong clk_put() sequence
  USB: keyspan: remove dead debugging code
  USB: serial: add missing newlines to dev_ messages.
  USB: serial: add missing braces
  USB: serial: continue to write on errors
  USB: serial: continue to read on errors
  USB: serial: make bulk_out_size a lower limit
  USB: cypress_m8: fix potential scheduling while atomic
  devicetree: bindings: document lsi,zevio-usb
  usb: chipidea: add support for USB OTG controller on LSI Zevio SoCs
  usb: chipidea: imx: Use dev_name() for ci_hdrc name to distinguish USBs
  ...

usbcore: rename struct dev_state to struct usb_dev_state

2014-03-10T16:54:56+00:00

Since it is needed outside usbcore and exposed in include/linux/usb.h,
it conflicts with enum dev_state in rt2x00 wireless driver.

Mark it as usb specific to avoid conflicts in the future.

Signed-off-by: Valentina Manea 
Signed-off-by: Greg Kroah-Hartman

staging: usbip: claim ports used by shared devices

2014-03-09T06:48:43+00:00

A device should not be able to be used concurrently both by
the server and the client. Claiming the port used by the
shared device ensures no interface drivers bind to it and
that it is not usable from the server.

Signed-off-by: Valentina Manea 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

usb-core: Track if an endpoint has streams

2014-03-04T23:38:03+00:00

This is a preparation patch for adding support for bulk streams to usbfs.

Signed-off-by: Hans de Goede 
Signed-off-by: Sarah Sharp

usb-core: Move USB_MAXENDPOINTS definitions to usb.h

2014-03-04T23:38:03+00:00

So that it can be used in other places too.

Signed-off-by: Hans de Goede 
Signed-off-by: Sarah Sharp

Merge 3.14-rc3 into staging-next

2014-02-17T22:45:02+00:00

We want the fixes in this branch to make testing and future work easier.

Signed-off-by: Greg Kroah-Hartman

Revert "usb: xhci: Link TRB must not occur within a USB payload burst"

2014-02-07T22:30:03+00:00

This reverts commit 35773dac5f862cb1c82ea151eba3e2f6de51ec3e.  It's a
hack that caused regressions in the usb-storage and userspace USB
drivers that use usbfs and libusb.  Commit 70cabb7d992f "xhci 1.0: Limit
arbitrarily-aligned scatter gather." should fix the issues seen with the
ax88179_178a driver on xHCI 1.0 hosts, without causing regressions.

Signed-off-by: Sarah Sharp 
Cc: stable@vger.kernel.org # 3.12