linux-toradex.git/include/linux/usb.h, branch v5.19-rc8

usb: rework usb_maxpacket() using usb_pipe_endpoint()

2022-04-23T08:33:53+00:00

Rework the body of usb_maxpacket() and just rely on the
usb_pipe_endpoint() helper function to retrieve the host endpoint
instead of doing it by hand.

Signed-off-by: Vincent Mailhol 
Link: https://lore.kernel.org/r/20220317035514.6378-10-mailhol.vincent@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman

usb: remove third argument of usb_maxpacket()

2022-04-23T08:33:53+00:00

Now that all users of usb_maxpacket() have been migrated to only use
two arguments, remove the third variadic argument which was introduced
for the transition.

Signed-off-by: Vincent Mailhol 
Link: https://lore.kernel.org/r/20220317035514.6378-9-mailhol.vincent@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman

usb: deprecate the third argument of usb_maxpacket()

2022-04-23T08:33:53+00:00

This is a transitional patch with the ultimate goal of changing the
prototype of usb_maxpacket() from:
| static inline __u16
| usb_maxpacket(struct usb_device *udev, int pipe, int is_out)

into:
| static inline u16 usb_maxpacket(struct usb_device *udev, int pipe)

The third argument of usb_maxpacket(): is_out gets removed because it
can be derived from its second argument: pipe using
usb_pipeout(pipe). Furthermore, in the current version,
ubs_pipeout(pipe) is called regardless in order to sanitize the is_out
parameter.

In order to make a smooth change, we first deprecate the is_out
parameter by simply ignoring it (using a variadic function) and will
remove it later, once all the callers get updated.

The body of the function is reworked accordingly and is_out is
replaced by usb_pipeout(pipe). The WARN_ON() calls become unnecessary
and get removed.

Finally, the return type is changed from __u16 to u16 because this is
not a UAPI function.

Signed-off-by: Vincent Mailhol 
Link: https://lore.kernel.org/r/20220317035514.6378-2-mailhol.vincent@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman

usb: Remove usb_for_each_port()

2021-12-30T11:13:04+00:00

There are no more users for the function.

Reviewed-by: Andy Shevchenko 
Acked-by: Rafael J. Wysocki 
Signed-off-by: Heikki Krogerus 
Link: https://lore.kernel.org/r/20211223082432.45653-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

driver core: Move the "removable" attribute from USB to core

2021-05-27T07:36:31+00:00

Move the "removable" attribute from USB to core in order to allow it to be
supported by other subsystem / buses. Individual buses that want to support
this attribute can populate the removable property of the device while
enumerating it with the 3 possible values -
 - "unknown"
 - "fixed"
 - "removable"
Leaving the field unchanged (i.e. "not supported") would mean that the
attribute would not show up in sysfs for that device. The UAPI (location,
symantics etc) for the attribute remains unchanged.

Move the "removable" attribute from USB to the device core so it can be
used by other subsystems / buses.

By default, devices do not have a "removable" attribute in sysfs.

If a subsystem or bus driver wants to support a "removable" attribute, it
should call device_set_removable() before calling device_register() or
device_add(), e.g.:

    device_set_removable(dev, DEVICE_REMOVABLE);
    device_register(dev);

The possible values and the resulting sysfs attribute contents are:

    DEVICE_REMOVABLE_UNKNOWN  ->  "unknown"
    DEVICE_REMOVABLE          ->  "removable"
    DEVICE_FIXED              ->  "fixed"

Convert the USB "removable" attribute to use this new device core
functionality.  There should be no user-visible change in the location or
semantics of attribute for USB devices.

Reviewed-by: Bjorn Helgaas 
Signed-off-by: Rajat Jain 
Link: https://lore.kernel.org/r/20210524171812.18095-1-rajatja@google.com
Signed-off-by: Greg Kroah-Hartman

usb: fix spelling mistakes in header files

2021-05-21T18:05:31+00:00

Fix some spelling mistakes in comments:
trasfer ==> transfer
consumtion ==> consumption
endoint ==> endpoint
sharable ==> shareable
contraints ==> constraints
Auxilary ==> Auxiliary
correspondig ==> corresponding
interupt ==> interrupt
inifinite ==> infinite
assignement ==> assignment

Signed-off-by: Zhen Lei 
Link: https://lore.kernel.org/r/20210517094020.7310-1-thunder.leizhen@huawei.com
Signed-off-by: Greg Kroah-Hartman

usb: Iterator for ports

2021-04-09T14:00:00+00:00

Introducing usb_for_each_port(). It works the same way as
usb_for_each_dev(), but instead of going through every USB
device in the system, it walks through the USB ports in the
system.

Acked-by: Alan Stern 
Signed-off-by: Heikki Krogerus 
Link: https://lore.kernel.org/r/20210407065555.88110-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

usb: core: Track SuperSpeed Plus GenXxY

2021-03-23T12:12:37+00:00

Introduce ssp_rate field to usb_device structure to capture the
connected SuperSpeed Plus signaling rate generation and lane count with
the corresponding usb_ssp_rate enum.

Signed-off-by: Thinh Nguyen 
Link: https://lore.kernel.org/r/b7805d121e5ae4ad5ae144bd860b6ac04ee47436.1615432770.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman

USB: core: rename usb_driver_claim_interface() data parameter

2021-03-23T11:39:39+00:00

It's been almost twenty years since the interface "private data" pointer
was removed in favour of using the driver-data pointer of struct device.

Let's rename the driver-data parameter of usb_driver_claim_interface()
so that it better reflects how it's used.

Signed-off-by: Johan Hovold 
Link: https://lore.kernel.org/r/20210318155406.22399-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman

Merge 5.12-rc3 into usb-next

2021-03-15T07:45:20+00:00

We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman