#
# README for usbip-utils
#
# Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
#               2005-2008 Takahiro Hirofuchi


[Requirements]
    - USB/IP device drivers
	Found in the staging directory of the Linux kernel.

    - libudev >= 2.0
	libudev library

    - libwrap0-dev
	tcp wrapper library

    - gcc >= 4.0

    - libtool, automake >= 1.9, autoconf >= 2.5.0, pkg-config

[Optional]
    - hwdata
        Contains USB device identification data.


[Install]
    0. Generate configuration scripts.
	$ ./autogen.sh

    1. Compile & install the userspace utilities.
	$ ./configure [--with-tcp-wrappers=no] [--with-usbids-dir=<dir>]
	$ make install

    2. Compile & install USB/IP drivers.


[Usage]
    server:# (Physically attach your USB device.)

    server:# insmod usbip-core.ko
    server:# insmod usbip-host.ko

    server:# usbipd -D
	- Start usbip daemon.

    server:# usbip list -l
	- List driver assignments for USB devices.

    server:# usbip bind --busid 1-2
	- Bind usbip-host.ko to the device with busid 1-2.
	- The USB device 1-2 is now exportable to other hosts!
	- Use `usbip unbind --busid 1-2' to stop exporting the device.

    client:# insmod usbip-core.ko
    client:# insmod vhci-hcd.ko

    client:# usbip list --remote <host>
	- List exported USB devices on the <host>.

    client:# usbip attach --remote <host> --busid 1-2
	- Connect the remote USB device.

    client:# usbip port
	- Show virtual port status.

    client:# usbip detach --port <port>
	- Detach the USB device.


[Example]
---------------------------
	SERVER SIDE
---------------------------
Physically attach your USB devices to this host.

    trois:# insmod path/to/usbip-core.ko
    trois:# insmod path/to/usbip-host.ko
    trois:# usbipd -D

In another terminal, let's look up what USB devices are physically
attached to this host.

    trois:# usbip list -l
    Local USB devices
    =================
     - busid 1-1 (05a9:a511)
	     1-1:1.0 -> ov511

     - busid 3-2 (0711:0902)
	     3-2:1.0 -> none

     - busid 3-3.1 (08bb:2702)
	     3-3.1:1.0 -> snd-usb-audio
	     3-3.1:1.1 -> snd-usb-audio

     - busid 3-3.2 (04bb:0206)
	     3-3.2:1.0 -> usb-storage

     - busid 3-3 (0409:0058)
	     3-3:1.0 -> hub

     - busid 4-1 (046d:08b2)
	     4-1:1.0 -> none
	     4-1:1.1 -> none
	     4-1:1.2 -> none

     - busid 5-2 (058f:9254)
	     5-2:1.0 -> hub

A USB storage device of busid 3-3.2 is now bound to the usb-storage
driver. To export this device, we first mark the device as
"exportable"; the device is bound to the usbip-host driver. Please
remember you can not export a USB hub.

Mark the device of busid 3-3.2 as exportable:

    trois:# usbip --debug bind --busid 3-3.2
    ...
    usbip debug: usbip_bind.c:162:[unbind_other] 3-3.2:1.0 -> usb-storage
    ...
    bind device on busid 3-3.2: complete

    trois:# usbip list -l
    Local USB devices
    =================
    ...

     - busid 3-3.2 (04bb:0206)
	     3-3.2:1.0 -> usbip-host
    ...

---------------------------
	CLIENT SIDE
---------------------------
First, let's list available remote devices that are marked as
exportable on the host.

    deux:# insmod path/to/usbip-core.ko
    deux:# insmod path/to/vhci-hcd.ko

    deux:# usbip list --remote 10.0.0.3
    Exportable USB devices
    ======================
     - 10.0.0.3
	    1-1: Prolific Technology, Inc. : unknown product (067b:3507)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Mass Storage / SCSI / Bulk (Zip) (08/06/50)

	1-2.2.1: Apple Computer, Inc. : unknown product (05ac:0203)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Human Interface Devices / Boot Interface Subclass / Keyboard (03/01/01)

	1-2.2.3: OmniVision Technologies, Inc. : OV511+ WebCam (05a9:a511)
	       : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.3
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Vendor Specific Class / unknown subclass / unknown protocol (ff/00/00)

	    3-1: Logitech, Inc. : QuickCam Pro 4000 (046d:08b2)
	       : /sys/devices/pci0000:00/0000:00:1e.0/0000:02:0a.0/usb3/3-1
	       : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00)
	       :  0 - Data / unknown subclass / unknown protocol (0a/ff/00)
	       :  1 - Audio / Control Device / unknown protocol (01/01/00)
	       :  2 - Audio / Streaming / unknown protocol (01/02/00)

Attach a remote USB device:

    deux:# usbip attach --remote 10.0.0.3 --busid 1-1
    port 0 attached

Show the devices attached to this client:

    deux:# usbip port
    Port 00: <Port in Use> at Full Speed(12Mbps)
	   Prolific Technology, Inc. : unknown product (067b:3507)
	   6-1 -> usbip://10.0.0.3:3240/1-1  (remote bus/dev 001/004)
	   6-1:1.0 used by usb-storage
			  /sys/class/scsi_device/0:0:0:0/device
			  /sys/class/scsi_host/host0/device
			  /sys/block/sda/device

Detach the imported device:

    deux:# usbip detach --port 0
    port 0 detached


[Checklist]
    - See 'Debug Tips' on the project wiki.
	- http://usbip.wiki.sourceforge.net/how-to-debug-usbip
    - usbip-host.ko must be bound to the target device.
	- See /proc/bus/usb/devices and find "Driver=..." lines of the device.
    - Shutdown firewall.
	- usbip now uses TCP port 3240.
    - Disable SELinux.
    - Check the kernel and daemon messages.


[Contact]
    Mailing List: linux-usb@vger.kernel.org
8d85f3ea99f1eeafc4e8507936190e86a16ee8c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/usb/misc/Makefile?h=nds-private-remove&amp;id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>sound/usb/misc/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/usb/misc/Makefile?h=nds-private-remove&amp;id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/usb/misc/Makefile?h=nds-private-remove&amp;id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr></table>
<div class='commit-subject'>irqdomain: Avoid activating interrupts more than once</div><div class='commit-msg'>Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are
activated early"), we can end-up activating a PCI/MSI twice (once
at allocation time, and once at startup time).

This is normally of no consequences, except that there is some
HW out there that may misbehave if activate is used more than once
(the GICv3 ITS, for example, uses the activate callback
to issue the MAPVI command, and the architecture spec says that
"If there is an existing mapping for the EventID-DeviceID
combination, behavior is UNPREDICTABLE").

While this could be worked around in each individual driver, it may
make more sense to tackle the issue at the core level. In order to
avoid getting in that situation, let's have a per-interrupt flag
to remember if we have already activated that interrupt or not.

Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early")
Reported-and-tested-by: Andre Przywara &lt;andre.przywara@arm.com&gt;
Signed-off-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>Diffstat</a> (limited to 'sound/usb/misc/Makefile')</div><table summary='diffstat' class='diffstat'>