<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/usb/core/config.c, branch linux-4.2.y</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>usb: Use the USB_SS_MULT() macro to get the burst multiplier.</title>
<updated>2015-10-22T21:49:29+00:00</updated>
<author>
<name>Mathias Nyman</name>
<email>mathias.nyman@linux.intel.com</email>
</author>
<published>2015-09-21T14:46:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f860bf4416f338a0e22a2265cdfd720e5f5cb0da'/>
<id>f860bf4416f338a0e22a2265cdfd720e5f5cb0da</id>
<content type='text'>
commit ff30cbc8da425754e8ab96904db1d295bd034f27 upstream.

Bits 1:0 of the bmAttributes are used for the burst multiplier.
The rest of the bits used to be reserved (zero), but USB3.1 takes bit 7
into use.

Use the existing USB_SS_MULT() macro instead to make sure the mult value
and hence max packet calculations are correct for USB3.1 devices.

Note that burst multiplier in bmAttributes is zero based and that
the USB_SS_MULT() macro adds one.

Signed-off-by: Mathias Nyman &lt;mathias.nyman@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit ff30cbc8da425754e8ab96904db1d295bd034f27 upstream.

Bits 1:0 of the bmAttributes are used for the burst multiplier.
The rest of the bits used to be reserved (zero), but USB3.1 takes bit 7
into use.

Use the existing USB_SS_MULT() macro instead to make sure the mult value
and hence max packet calculations are correct for USB3.1 devices.

Note that burst multiplier in bmAttributes is zero based and that
the USB_SS_MULT() macro adds one.

Signed-off-by: Mathias Nyman &lt;mathias.nyman@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>usb-core bInterval quirk</title>
<updated>2014-08-01T22:47:05+00:00</updated>
<author>
<name>James P Michels III</name>
<email>james.p.michels@gmail.com</email>
</author>
<published>2014-07-27T17:28:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cd83ce9e6195aa3ea15ab4db92892802c20df5d0'/>
<id>cd83ce9e6195aa3ea15ab4db92892802c20df5d0</id>
<content type='text'>
This patch adds a usb quirk to support devices with interupt endpoints
and bInterval values expressed as microframes. The quirk causes the
parse endpoint function to modify the reported bInterval to a standards
conforming value.

There is currently code in the endpoint parser that checks for
bIntervals that are outside of the valid range (1-16 for USB 2+ high
speed and super speed interupt endpoints). In this case, the code assumes
the bInterval is being reported in 1ms frames. As well, the correction
is only applied if the original bInterval value is out of the 1-16 range.

With this quirk applied to the device, the bInterval will be
accurately adjusted from microframes to an exponent.

Signed-off-by: James P Michels III &lt;james.p.michels@gmail.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch adds a usb quirk to support devices with interupt endpoints
and bInterval values expressed as microframes. The quirk causes the
parse endpoint function to modify the reported bInterval to a standards
conforming value.

There is currently code in the endpoint parser that checks for
bIntervals that are outside of the valid range (1-16 for USB 2+ high
speed and super speed interupt endpoints). In this case, the code assumes
the bInterval is being reported in 1ms frames. As well, the correction
is only applied if the original bInterval value is out of the 1-16 range.

With this quirk applied to the device, the bInterval will be
accurately adjusted from microframes to an exponent.

Signed-off-by: James P Michels III &lt;james.p.michels@gmail.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge 3.14-rc6 into usb-next</title>
<updated>2014-03-12T18:40:15+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2014-03-12T18:40:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=192c028b6ac972df25fd624f94a94d038fbdb66c'/>
<id>192c028b6ac972df25fd624f94a94d038fbdb66c</id>
<content type='text'>
We want the USB fixes in here as well.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We want the USB fixes in here as well.
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: Make DELAY_INIT quirk wait 100ms between Get Configuration requests</title>
<updated>2014-03-07T19:46:51+00:00</updated>
<author>
<name>Julius Werner</name>
<email>jwerner@chromium.org</email>
</author>
<published>2014-03-04T19:27:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d86db25e53fa69e3e97f3b55dd82a70689787c5d'/>
<id>d86db25e53fa69e3e97f3b55dd82a70689787c5d</id>
<content type='text'>
The DELAY_INIT quirk only reduces the frequency of enumeration failures
with the Logitech HD Pro C920 and C930e webcams, but does not quite
eliminate them. We have found that adding a delay of 100ms between the
first and second Get Configuration request makes the device enumerate
perfectly reliable even after several weeks of extensive testing. The
reasons for that are anyone's guess, but since the DELAY_INIT quirk
already delays enumeration by a whole second, wating for another 10th of
that isn't really a big deal for the one other device that uses it, and
it will resolve the problems with these webcams.

Signed-off-by: Julius Werner &lt;jwerner@chromium.org&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The DELAY_INIT quirk only reduces the frequency of enumeration failures
with the Logitech HD Pro C920 and C930e webcams, but does not quite
eliminate them. We have found that adding a delay of 100ms between the
first and second Get Configuration request makes the device enumerate
perfectly reliable even after several weeks of extensive testing. The
reasons for that are anyone's guess, but since the DELAY_INIT quirk
already delays enumeration by a whole second, wating for another 10th of
that isn't really a big deal for the one other device that uses it, and
it will resolve the problems with these webcams.

Signed-off-by: Julius Werner &lt;jwerner@chromium.org&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb-core: Move USB_MAXENDPOINTS definitions to usb.h</title>
<updated>2014-03-04T23:38:03+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2013-10-09T15:19:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8f5d35441ff26b31e3812556ce468c76f1eb216b'/>
<id>8f5d35441ff26b31e3812556ce468c76f1eb216b</id>
<content type='text'>
So that it can be used in other places too.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
So that it can be used in other places too.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: delete non-required instances of include &lt;linux/init.h&gt;</title>
<updated>2014-01-08T23:01:39+00:00</updated>
<author>
<name>Paul Gortmaker</name>
<email>paul.gortmaker@windriver.com</email>
</author>
<published>2014-01-08T16:08:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=803a536243b3a1ed2289f41897b11b72bd083309'/>
<id>803a536243b3a1ed2289f41897b11b72bd083309</id>
<content type='text'>
None of these files are actually using any __init type directives
and hence don't need to include &lt;linux/init.h&gt;.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
None of these files are actually using any __init type directives
and hence don't need to include &lt;linux/init.h&gt;.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: core: get config and string descriptors for unauthorized devices</title>
<updated>2013-12-09T21:27:32+00:00</updated>
<author>
<name>Thomas Pugliese</name>
<email>thomas.pugliese@gmail.com</email>
</author>
<published>2013-12-09T19:40:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=83e83ecb79a8225e79bc8e54e9aff3e0e27658a2'/>
<id>83e83ecb79a8225e79bc8e54e9aff3e0e27658a2</id>
<content type='text'>
There is no need to skip querying the config and string descriptors for
unauthorized WUSB devices when usb_new_device is called.  It is allowed
by WUSB spec.  The only action that needs to be delayed until
authorization time is the set config.  This change allows user mode
tools to see the config and string descriptors earlier in enumeration
which is needed for some WUSB devices to function properly on Android
systems.  It also reduces the amount of divergent code paths needed
for WUSB devices.

Signed-off-by: Thomas Pugliese &lt;thomas.pugliese@gmail.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There is no need to skip querying the config and string descriptors for
unauthorized WUSB devices when usb_new_device is called.  It is allowed
by WUSB spec.  The only action that needs to be delayed until
authorization time is the set config.  This change allows user mode
tools to see the config and string descriptors earlier in enumeration
which is needed for some WUSB devices to function properly on Android
systems.  It also reduces the amount of divergent code paths needed
for WUSB devices.

Signed-off-by: Thomas Pugliese &lt;thomas.pugliese@gmail.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: config-&gt;desc.bLength may not exceed amount of data returned by the device</title>
<updated>2013-08-12T19:24:27+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2013-08-03T14:37:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b4f17a488ae2e09bfcf95c0e0b4219c246f1116a'/>
<id>b4f17a488ae2e09bfcf95c0e0b4219c246f1116a</id>
<content type='text'>
While reading the config parsing code I noticed this check is missing, without
this check config-&gt;desc.wTotalLength can end up with a value larger then the
dev-&gt;rawdescriptors length for the config, and when userspace then tries to
get the rawdescriptors bad things may happen.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
While reading the config parsing code I noticed this check is missing, without
this check config-&gt;desc.wTotalLength can end up with a value larger then the
dev-&gt;rawdescriptors length for the config, and when userspace then tries to
get the rawdescriptors bad things may happen.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: Fail a get config when the port is powered off.</title>
<updated>2012-09-10T20:04:01+00:00</updated>
<author>
<name>Lan Tianyu</name>
<email>tianyu.lan@intel.com</email>
</author>
<published>2012-09-05T05:44:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3a22b872e923954853cabd5a18f41da1846bccdb'/>
<id>3a22b872e923954853cabd5a18f41da1846bccdb</id>
<content type='text'>
Alan Stern pointed out that a USB port could potentially get powered off
when the attached USB device is in the middle of enumerating, due to
race conditions:
	http://marc.info/?l=linux-usb&amp;m=134130616707548&amp;w=2

If that happens, we need to ensure the enumeration fails.  If a call to
usb_get_descriptor() fails for a reason other than a Stall, return an
error.  That should handle the case where the port is powered off.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Lan Tianyu &lt;tianyu.lan@intel.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Alan Stern pointed out that a USB port could potentially get powered off
when the attached USB device is in the middle of enumerating, due to
race conditions:
	http://marc.info/?l=linux-usb&amp;m=134130616707548&amp;w=2

If that happens, we need to ensure the enumeration fails.  If a call to
usb_get_descriptor() fails for a reason other than a Stall, return an
error.  That should handle the case where the port is powered off.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Lan Tianyu &lt;tianyu.lan@intel.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usbcore: get BOS descriptor set</title>
<updated>2011-09-26T22:51:08+00:00</updated>
<author>
<name>Andiry Xu</name>
<email>andiry.xu@amd.com</email>
</author>
<published>2011-09-23T21:19:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3148bf041d169a083aa31bd69bedd5bfb7ffe215'/>
<id>3148bf041d169a083aa31bd69bedd5bfb7ffe215</id>
<content type='text'>
This commit gets BOS(Binary Device Object Store) descriptor set for Super
Speed devices and High Speed devices which support BOS descriptor.

BOS descriptor is used to report additional USB device-level capabilities
that are not reported via the Device descriptor. By getting BOS descriptor
set, driver can check device's device-level capability such as LPM
capability.

Signed-off-by: Andiry Xu &lt;andiry.xu@amd.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This commit gets BOS(Binary Device Object Store) descriptor set for Super
Speed devices and High Speed devices which support BOS descriptor.

BOS descriptor is used to report additional USB device-level capabilities
that are not reported via the Device descriptor. By getting BOS descriptor
set, driver can check device's device-level capability such as LPM
capability.

Signed-off-by: Andiry Xu &lt;andiry.xu@amd.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
</feed>
