On Wed, 29 Mar 2017, Mauro Carvalho Chehab wrote:
> The pandoc conversion is not perfect. Do handwork in order to:
>
> - add a title to this chapter;
> - use the proper warning and note markups;
> - use kernel-doc to include Kernel header and c files;
Please look at Documentation/sphinx/tmplcvt w
On Thu, 30 Mar 2017, Jani Nikula wrote:
> On Wed, 29 Mar 2017, Mauro Carvalho Chehab wrote:
>> The pandoc conversion is not perfect. Do handwork in order to:
>>
>> - add a title to this chapter;
>> - use the proper warning and note markups;
>> - use kernel-doc to include Kernel header and c files
Hi Mauro,
Am 29.03.2017 um 20:54 schrieb Mauro Carvalho Chehab :
> As we're moving out of DocBook, let's convert the remaining
> USB docbooks to ReST.
>
> The transformation itself on this patch is a no-brainer
> conversion using pandoc.
right, its a no-brainer ;-) I'am not very happy with this
Am Donnerstag, den 30.03.2017, 01:15 +0300 schrieb Laurent Pinchart:
> > + may also override PAD bytes at the end of the ``transfer_buffer``, up to
> > the
> > + size of the CPU word.
>
> "May" is quite weak here. If some host controller drivers require buffers to
> be aligned, then it's an A
On Thu, 30 Mar 2017, Markus Heiser wrote:
> Hi Mauro,
>
> Am 29.03.2017 um 20:54 schrieb Mauro Carvalho Chehab
> :
>
>> As we're moving out of DocBook, let's convert the remaining
>> USB docbooks to ReST.
>>
>> The transformation itself on this patch is a no-brainer
>> conversion using pandoc.
>
On 30.03.2017 04:48, Peter Chen wrote:
On Wed, Mar 29, 2017 at 11:06:53AM +0300, Felipe Balbi wrote:
Hi,
Peter Chen writes:
According to xHCI ch4.20 Scratchpad Buffers
A Scratchpad Buffer is a PAGESIZE block of system memory
located on a PAGESIZE boundary
...
On 03/27/2017 11:31 AM, Felipe Balbi wrote:
Hi,
Christian Gromm writes:
we observe an issue with a td_list running empty and an
endpoint being stalled at the same time on
Linux ihu-low 4.1.27-abl #1 SMP PREEMPT Mon Mar 20 13:51:51 CET 2017
x86_64 x86_64 x86_64 GNU/Linux.
this is one old
Em Thu, 30 Mar 2017 10:01:29 +0300
Jani Nikula escreveu:
> On Wed, 29 Mar 2017, Mauro Carvalho Chehab wrote:
> > The pandoc conversion is not perfect. Do handwork in order to:
> >
> > - add a title to this chapter;
> > - use the proper warning and note markups;
> > - use kernel-doc to include Ke
On Thu, Mar 30, 2017 at 10:29:41AM +0200, Christian Gromm wrote:
>
>
> On 03/27/2017 11:31 AM, Felipe Balbi wrote:
> >
> > Hi,
> >
> > Christian Gromm writes:
> > > we observe an issue with a td_list running empty and an
> > > endpoint being stalled at the same time on
> > >
> > > Linux ihu-l
On 30 March 2017 at 10:53, Greg KH wrote:
> On Thu, Mar 30, 2017 at 10:29:41AM +0200, Christian Gromm wrote:
>>
>>
>> On 03/27/2017 11:31 AM, Felipe Balbi wrote:
>> >
>> > Hi,
>> >
>> > Christian Gromm writes:
>> > > we observe an issue with a td_list running empty and an
>> > > endpoint being st
Am 30.03.2017 um 10:21 schrieb Jani Nikula :
> On Thu, 30 Mar 2017, Markus Heiser wrote:
>> Hi Mauro,
>>
>> Am 29.03.2017 um 20:54 schrieb Mauro Carvalho Chehab
>> :
>>
>>> As we're moving out of DocBook, let's convert the remaining
>>> USB docbooks to ReST.
>>>
>>> The transformation itself
On Thu, Mar 30, 2017 at 11:11:34AM +0200, Janusz Dziedzic wrote:
> On 30 March 2017 at 10:53, Greg KH wrote:
> > On Thu, Mar 30, 2017 at 10:29:41AM +0200, Christian Gromm wrote:
> >>
> >>
> >> On 03/27/2017 11:31 AM, Felipe Balbi wrote:
> >> >
> >> > Hi,
> >> >
> >> > Christian Gromm writes:
> >>
Hi
Roger Quadros writes:
For something that simple, we wouldn't even need to use OTG FSM layer
because that brings no benefit for such a simple requirement.
>>>
>>> no no. I think you got it wrong. I'm not using the OTG FSM layer at all :).
>>
>> what are all the otg_fsm mentions then
Em Thu, 30 Mar 2017 10:04:32 +0300
Jani Nikula escreveu:
> On Thu, 30 Mar 2017, Jani Nikula wrote:
> > On Wed, 29 Mar 2017, Mauro Carvalho Chehab
> > wrote:
> >> The pandoc conversion is not perfect. Do handwork in order to:
> >>
> >> - add a title to this chapter;
> >> - use the proper warn
Hi,
Roger Quadros writes:
>>> 3) All this becomes even more complex for configfs based gadget driver.
>>>
>>> So using stop/start gadget is a much simpler solution really as UDC software
>>> side of things remain unchanged and the gadget driver can persist between
>>> role switches.
>>
>> I had
Hi Oliver,
On Thursday 30 Mar 2017 10:11:31 Oliver Neukum wrote:
> Am Donnerstag, den 30.03.2017, 01:15 +0300 schrieb Laurent Pinchart:
> > > + may also override PAD bytes at the end of the ``transfer_buffer``,
> > > up to the
> > > + size of the CPU word.
> >
> > "May" is quite weak here. If
Hi Mauro,
On Wednesday 29 Mar 2017 22:06:33 Mauro Carvalho Chehab wrote:
> Em Thu, 30 Mar 2017 01:15:27 +0300 Laurent Pinchart escreveu:
> > On Wednesday 29 Mar 2017 15:54:21 Mauro Carvalho Chehab wrote:
> > > Several host controllers, commonly found on ARM, like dwc2,
> > > require buffers that a
On 30/03/17 12:32, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
3) All this becomes even more complex for configfs based gadget driver.
So using stop/start gadget is a much simpler solution really as UDC
software
side of things remain unchanged and the gadget d
Em Thu, 30 Mar 2017 11:20:14 +0200
Markus Heiser escreveu:
> Am 30.03.2017 um 10:21 schrieb Jani Nikula :
>
> > On Thu, 30 Mar 2017, Markus Heiser wrote:
> >> Hi Mauro,
> >>
> >> Am 29.03.2017 um 20:54 schrieb Mauro Carvalho Chehab
> >> :
> >>
> >>> As we're moving out of DocBook, let's
Hi,
Roger Quadros writes:
> To avoid checkpatch warnings with new patches let's
> start using the BIT() macro wherever possible.
>
> Signed-off-by: Roger Quadros
this didn't apply cleanly, I have manually applied it since it was so
simple. Please make sure testing/next looks good (I'll push it
Em Thu, 30 Mar 2017 12:34:32 +0300
Laurent Pinchart escreveu:
> Hi Oliver,
>
> On Thursday 30 Mar 2017 10:11:31 Oliver Neukum wrote:
> > Am Donnerstag, den 30.03.2017, 01:15 +0300 schrieb Laurent Pinchart:
> > > > + may also override PAD bytes at the end of the ``transfer_buffer``,
> > > > u
Hi,
Yoshihiro Shimoda writes:
> This patch adds support for usb role swap via sysfs "role".
>
> For example:
> 1) Connect a usb cable using 2 Salvator-X boards.
> - For A-Device, the cable is connected to CN11 (USB3.0 ch0).
> - For B-Device, the cable is connected to CN9 (USB2.0 ch0).
> 2)
Hi,
cristian.bir...@microchip.com writes:
> From: Cristian Birsan
>
> Check fifo configuration values against device tree values for endpoint fifo
> in auto configuration mode (fifo_mode=0).
>
> Signed-off-by: Cristian Birsan
> ---
> drivers/usb/gadget/udc/atmel_usba_udc.c | 24 +++
Hi,
cristian.bir...@microchip.com writes:
> From: Cristian Birsan
>
> Use dev_warn() to display EP configuration error to avoid silent failure.
>
> Signed-off-by: Cristian Birsan
> ---
> drivers/usb/gadget/udc/atmel_usba_udc.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> d
On 30/03/17 13:25, Felipe Balbi wrote:
>
> Hi,
>
> Roger Quadros writes:
>> To avoid checkpatch warnings with new patches let's
>> start using the BIT() macro wherever possible.
>>
>> Signed-off-by: Roger Quadros
>
> this didn't apply cleanly, I have manually applied it since it was so
> simpl
Hi,
Minas Harutyunyan writes:
> After data out stage gadget driver should not initate ZLP on control EP,
> because it is up to function driver.
not true always, depends on return value from ->setup(). Which problem
did you have? Which gadget driver? How did you reproduce? Which other
tests did
This document describe some USB core functions. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
.../bulk-streams.txt => driver-api/usb/bulk-streams.rst}| 13 +
Documentation/driver-api/usb/index.rst | 1 +
2 files changed, 10 insertio
The structs there at device table are used by other documentation
at the Kernel. So, add it to the driver API.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/basics.rst | 6 ++
1 file changed, 6 insertions(+)
diff --git a/Documentation/driver-api/basics.rst
b/Documentati
The URB doc describes the Kernel mechanism that do USB transfers.
While the functions are already described at urb.h, there are a
number of concepts and theory that are important for USB driver
developers.
Convert it to ReST and use C ref links to point to the places
at usb.h where each function a
Several host controllers, commonly found on ARM, like dwc2,
require buffers that are CPU-word aligned for they to work.
Failing to do that will cause random troubles at the caller
drivers, causing them to fail.
Document it.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/usb/
Get rid of those warnings:
Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name:
"usb_type".
Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name:
"usb_dir".
Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name:
"usb_recip".
Docume
This document describe some USB core features. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
.../{usb/dma.txt => driver-api/usb/dma.rst}| 51 --
Documentation/driver-api/usb/index.rst | 1 +
2 files changed, 28 insertions(+), 24
We need an space before a numbered list to avoid those warnings:
./drivers/usb/core/message.c:478: ERROR: Unexpected indentation.
./drivers/usb/core/message.c:479: WARNING: Block quote ends without a blank
line; unexpected unindent.
./include/linux/usb/composite.h:455: ERROR: Unexpected indentati
By definition, we use /* private: */ tag when we won't be documenting
a parameter. However, those two parameters are documented:
./include/linux/usb/composite.h:510: warning: Excess struct/union/enum/typedef
member 'setup_pending' description in 'usb_composite_dev'
./include/linux/usb/composite.h
There's one value that use spaces instead of tabs to ident.
That causes the following warning:
./include/linux/usb/gadget.h:193: ERROR: Unexpected indentation.
Signed-off-by: Mauro Carvalho Chehab
---
include/linux/usb/gadget.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
This file is actually quite complex, and required several
manual handwork:
- add a title for the document;
- use the right tags for monospaced fonts;
- use c references where needed;
- adjust cross-reference to writing_usb_driver.rst
- hightlight cross-referenced lines.
With regards to C code sni
As some USB documentation files got moved, adjust their
cross-references to their new place.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/ABI/stable/sysfs-bus-usb| 2 +-
Documentation/driver-api/usb/URB.rst | 2 ++
Documentation/driver-api/usb/callbacks.rst
The pandoc conversion is not perfect. Do handwork in order to:
- add a title to this chapter;
- use the proper warning and note markups;
- use kernel-doc to include Kernel header and c files;
- remove legacy notes with regards to DocBook;
- some other minor adjustments to make it better to read in
This document describe some USB core functions. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
.../callbacks.txt => driver-api/usb/callbacks.rst} | 61 +++---
Documentation/driver-api/usb/index.rst | 1 +
2 files changed, 43 insertions(+), 19
Currently, the script just assumes to be called at
Documentation/sphinx/. Change it to work on any directory,
and make it abort if something gets wrong.
Also, be sure that both parameters are specified.
That should avoid troubles like this:
$ Documentation/sphinx/tmplcvt Documentation/DocBook/wr
This document describe some USB core functions. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/usb/index.rst | 1 +
.../usb/power-management.rst} | 404 +++--
2 files changed, 214 insertions(+),
The pandoc conversion is not perfect. Do handwork in order to:
- add a title to this chapter;
- adjust function and struct references;
- use monospaced fonts for C code names;
- some other minor adjustments to make it better to read in
text mode and in html.
Signed-off-by: Mauro Carvalho Chehab
This document describe some USB core features. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/usb/index.rst | 1 +
.../persist.txt => driver-api/usb/persist.rst} | 22 +-
2 files changed, 14 insertions(+), 9 d
- use the proper warning and note markups;
- add references for parts of the document that will be
cross-referenced on other USB docs;
- some minor adjustments to make it better to read in
text mode and in html.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/usb/usb.rst |
This document describe some USB core features. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
Documentation/driver-api/usb/error-codes.rst | 205 +++
Documentation/driver-api/usb/index.rst | 1 +
Documentation/usb/error-codes.txt
This document describe some USB core functions. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
.../anchors.txt => driver-api/usb/anchors.rst} | 36 --
Documentation/driver-api/usb/index.rst | 1 +
2 files changed, 21 insertions(+), 16
This document describe some USB core features. Add it to the
driver-api book.
Signed-off-by: Mauro Carvalho Chehab
---
.../hotplug.txt => driver-api/usb/hotplug.rst} | 66 --
Documentation/driver-api/usb/index.rst | 1 +
2 files changed, 37 insertions(+), 30
Em Thu, 30 Mar 2017 12:38:42 +0300
Laurent Pinchart escreveu:
> Hi Mauro,
>
> On Wednesday 29 Mar 2017 22:06:33 Mauro Carvalho Chehab wrote:
> > Em Thu, 30 Mar 2017 01:15:27 +0300 Laurent Pinchart escreveu:
> > > On Wednesday 29 Mar 2017 15:54:21 Mauro Carvalho Chehab wrote:
> > > > Several
Em Thu, 30 Mar 2017 07:45:35 -0300
Mauro Carvalho Chehab escreveu:
> Currently, the script just assumes to be called at
> Documentation/sphinx/. Change it to work on any directory,
> and make it abort if something gets wrong.
>
> Also, be sure that both parameters are specified.
>
> That should
From: Mauro Carvalho Chehab
> Sent: 30 March 2017 11:28
...
> While debugging this issue, I saw *a lot* of network-generated URB
> traffic from RPi3 Ethernet port drivers that were using non-aligned
> buffers and were subject to the temporary buffer conversion.
Buffers from the network stack will
Am 30.03.2017 um 12:12 schrieb Mauro Carvalho Chehab :
>>> At this point I'd just go with what Mauro has. It's here now, as
>>> patches. We've seen from the GPU documentation that polishing the
>>> one-time initial conversion is, after a point, wasted effort. Having the
>>> documentation in rst at
>
> Odd that it tries to enumerate as high-speed.
>
> Might be because xHC controller is being hotplug added at device
> connect,
> and xhci driver adds USB2 hcd first, and usb3 hcd second.
>
> What happens if you first connect a high-speed USB device to the
> first
> Thunderbolt type-C Gen2 po
Am 30.03.2017 um 13:17 schrieb Markus Heiser :
>
> If it helps ... dbxml2rst also supports single file conversion ... I updated:
>
>
> https://github.com/return42/sphkerneldoc/tree/master/Documentation/books_migrated
>
> There you find a folder for each DocBook conversion with only one rst f
On Thu, 30 Mar 2017, Mauro Carvalho Chehab wrote:
> Currently, the script just assumes to be called at
> Documentation/sphinx/. Change it to work on any directory,
> and make it abort if something gets wrong.
>
> Also, be sure that both parameters are specified.
>
> That should avoid troubles like
On 30 March 2017 at 11:23, Greg KH wrote:
> On Thu, Mar 30, 2017 at 11:11:34AM +0200, Janusz Dziedzic wrote:
>> On 30 March 2017 at 10:53, Greg KH wrote:
>> > On Thu, Mar 30, 2017 at 10:29:41AM +0200, Christian Gromm wrote:
>> >>
>> >>
>> >> On 03/27/2017 11:31 AM, Felipe Balbi wrote:
>> >> >
>>
Hi Tony,
On Monday 27 March 2017 08:35 PM, Tony Lindgren wrote:
> * Kishon Vijay Abraham I [170326 23:27]:
>> On Thursday 23 March 2017 05:16 AM, Tony Lindgren wrote:
>>> +static const struct phy_ops ops = {
>>> + .owner = THIS_MODULE,
>>> +};
>>
>> Given that this phy doesn't have any
Hi Mauro,
On Thursday 30 Mar 2017 07:28:00 Mauro Carvalho Chehab wrote:
> Em Thu, 30 Mar 2017 12:34:32 +0300 Laurent Pinchart escreveu:
> > On Thursday 30 Mar 2017 10:11:31 Oliver Neukum wrote:
> >> Am Donnerstag, den 30.03.2017, 01:15 +0300 schrieb Laurent Pinchart:
> + may also override P
Em Thu, 30 Mar 2017 13:17:16 +0200
Markus Heiser escreveu:
> Am 30.03.2017 um 12:12 schrieb Mauro Carvalho Chehab
> :
> >>> At this point I'd just go with what Mauro has. It's here now, as
> >>> patches. We've seen from the GPU documentation that polishing the
> >>> one-time initial conversion i
Em Thu, 30 Mar 2017 15:05:30 +0300
Laurent Pinchart escreveu:
> Hi Mauro,
>
> On Thursday 30 Mar 2017 07:28:00 Mauro Carvalho Chehab wrote:
> > Em Thu, 30 Mar 2017 12:34:32 +0300 Laurent Pinchart escreveu:
> > > On Thursday 30 Mar 2017 10:11:31 Oliver Neukum wrote:
> > >> Am Donnerstag, den
Am Donnerstag, den 30.03.2017, 07:28 -0300 schrieb Mauro Carvalho
Chehab:
> Em Thu, 30 Mar 2017 12:34:32 +0300
> Laurent Pinchart escreveu:
>
> >
Hi,
> > > That effectively changes the API. Many network drivers are written with
> > > the assumption that any contiguous buffer is valid. In fact
Commit a65a6f14dc24 ("USB: serial: fix race between probe and open")
fixed a race between probe and open, which could lead to crashes when a
not yet fully initialised port was being opened.
This race was later incidentally closed by commit 7e73eca6a7b2 ("TTY:
move cdev_add to tty_register_device")
On Tue, Jul 12, 2016 at 10:18:05AM +0200, Jan Kundrát wrote:
> On Tuesday, 12 July 2016 01:50:59 CEST, Greg KH wrote:
> > There is, as far as I can tell, no set of "default" termios values for
> > any type of serial port, so the "last" set of them is as good as any,
> > right?
>
> Each driver spec
On Thu, 30 Mar 2017, Oliver Neukum wrote:
> > Btw, I'm a lot more concerned about USB storage drivers. When I was
> > discussing about this issue at the #raspberrypi-devel IRC channel,
> > someone complained that, after switching from the RPi downstream Kernel
> > to upstream, his USB data storage
Em Thu, 30 Mar 2017 10:26:32 -0400 (EDT)
Alan Stern escreveu:
> On Thu, 30 Mar 2017, Oliver Neukum wrote:
>
> > > Btw, I'm a lot more concerned about USB storage drivers. When I was
> > > discussing about this issue at the #raspberrypi-devel IRC channel,
> > > someone complained that, after swit
On Thu, 30 Mar 2017, Mauro Carvalho Chehab wrote:
> Em Thu, 30 Mar 2017 10:26:32 -0400 (EDT)
> Alan Stern escreveu:
>
> > On Thu, 30 Mar 2017, Oliver Neukum wrote:
> >
> > > > Btw, I'm a lot more concerned about USB storage drivers. When I was
> > > > discussing about this issue at the #raspber
Hi Linus,
On Thu, 30 Mar 2017, Linus Walleij wrote:
> On Tue, Feb 21, 2017 at 3:43 PM, Rob Herring wrote:
> > On Fri, Feb 17, 2017 at 4:07 AM, Hans Ulli Kroll
> > wrote:
> >> Hi Rob,
> >>
> >> On Wed, 15 Feb 2017, Rob Herring wrote:
> >>
> >>> On Wed, Feb 08, 2017 at 09:00:09PM +0100, Hans Ulli
Notifications may only be 8 bytes long. Accessing the 9th and
10th byte of unimplemented/unknown notifications may be insecure.
Also check the length of known notifications before accessing anything
behind the 8th byte.
Signed-off-by: Tobias Herzog
---
drivers/usb/class/cdc-acm.c | 13 +-
Hi Alan,
On Thursday 30 Mar 2017 11:55:18 Alan Stern wrote:
> On Thu, 30 Mar 2017, Mauro Carvalho Chehab wrote:
> > Em Thu, 30 Mar 2017 10:26:32 -0400 (EDT) Alan Stern escreveu:
> >> On Thu, 30 Mar 2017, Oliver Neukum wrote:
> Btw, I'm a lot more concerned about USB storage drivers. When I wa
write_used was introduced with commit 884b600f63dc ("[PATCH] USB: fix acm
trouble with terminals") but never used since.
Signed-off-by: Tobias Herzog
---
drivers/usb/class/cdc-acm.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index
USB devices may have very limitited endpoint packet sizes, so that
notifications can not be transferred within one single usb packet.
This patchset adds the ability to reassemble notifications that are
transmitted fragmented.
v3:
* reordering patches (security issues first)
* fixed possible ali
USB devices may have very limited endpoint packet sizes, so that
notifications can not be transferred within one single usb packet.
Reassembling of multiple packages may be necessary.
Signed-off-by: Tobias Herzog
---
drivers/usb/class/cdc-acm.c | 112
Adds a similar log message to USB_CDC_NOTIFY_SERIAL_STATE as it is
already done with USB_CDC_NOTIFY_NETWORK_CONNECTION.
Signed-off-by: Tobias Herzog
---
drivers/usb/class/cdc-acm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
ind
Am Donnerstag, den 30.03.2017, 11:55 -0400 schrieb Alan Stern:
>
> I'm pretty sure that usb-storage does not do this, at least, not when
> operating in its normal Bulk-Only-Transport mode. It never tries to
> read the results of an earlier transfer after carrying out a later
> transfer to any
Hi Mauro,
[auto build test WARNING on linus/master]
[also build test WARNING on v4.11-rc4 next-20170330]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Mauro-Carvalho-Chehab/driver-api-basics
Hi,
> From: Felipe Balbi, Sent: Thursday, March 30, 2017 7:37 PM
>
> Hi,
>
> Yoshihiro Shimoda writes:
> > This patch adds support for usb role swap via sysfs "role".
> >
> > For example:
> > 1) Connect a usb cable using 2 Salvator-X boards.
> > - For A-Device, the cable is connected to CN11
This patch adds support for usb role swap via sysfs "role".
For example:
1) Connect a usb cable using 2 Salvator-X boards.
- For A-Device, the cable is connected to CN11 (USB3.0 ch0).
- For B-Device, the cable is connected to CN9 (USB2.0 ch0).
2) On A-Device, you input the following command:
Add support for the net stats64 counters to the usbnet core and then to
the qmi_wwan driver.
This is a strait forward addition of 64bit counters for RX and TX packets
and byte counts. It is done in the same style as for the other net drivers
that support stats64.
The bulk of the change is to the
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