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usb: patches for v4.1 merge window

Browse source 
As usual, a big pile of commits. This time a total
 of 111 non-merge commits.
 
 Other than the usual set of cleanups and non-critical
 fixes, we have some interesting work for AM335x's MUSB
 babble recovery. Now that takes a lot less time and we
 don't have to Reset MUSB all the time.
 
 The printer gadget has been converted to configfs interface
 and the atmel udc has learned suspend/resume with wakeup.
 
 Signed-off-by: Felipe Balbi <[email protected]>
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Merge tag 'usb-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.1 merge window

As usual, a big pile of commits. This time a total
of 111 non-merge commits.

Other than the usual set of cleanups and non-critical
fixes, we have some interesting work for AM335x's MUSB
babble recovery. Now that takes a lot less time and we
don't have to Reset MUSB all the time.

The printer gadget has been converted to configfs interface
and the atmel udc has learned suspend/resume with wakeup.

Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
Greg Kroah-Hartman 2015-03-24 22:57:49 +01:00
commit 1c41a9570a
59 changed files with 2847 additions and 1995 deletions
Download patch file Download diff file Expand all files Collapse all files

47
Documentation/usb/gadget-testing.txt
View file

@ -19,6 +19,7 @@ provided by gadgets.
16. UAC1 function
17. UAC2 function
18. UVC function
19. PRINTER function
1. ACM function
@ -726,3 +727,49 @@ with these patches:
http://www.spinics.net/lists/linux-usb/msg99220.html
host: luvcview -f yuv
19. PRINTER function
====================
The function is provided by usb_f_printer.ko module.
Function-specific configfs interface
------------------------------------
The function name to use when creating the function directory is "printer".
The printer function provides these attributes in its function directory:
pnp_string - Data to be passed to the host in pnp string
q_len - Number of requests per endpoint
Testing the PRINTER function
----------------------------
The most basic testing:
device: run the gadget
# ls -l /devices/virtual/usb_printer_gadget/
should show g_printer<number>.
If udev is active, then /dev/g_printer<number> should appear automatically.
host:
If udev is active, then e.g. /dev/usb/lp0 should appear.
host->device transmission:
device:
# cat /dev/g_printer<number>
host:
# cat > /dev/usb/lp0
device->host transmission:
# cat > /dev/g_printer<number>
host:
# cat /dev/usb/lp0
More advanced testing can be done with the prn_example
described in Documentation/usb/gadget-printer.txt.