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ac3865557b
linux/drivers/usb/gadget
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Matthieu CASTET ac3865557b gadget event trace : add request pointer 
This allows to identify transfer request, if more than one are in queue.

This is allowed by usb_ep_queue : "Any endpoint
(except control endpoints like ep0) may have more than one transfer
request queued; they complete in FIFO order."

For example with adb gadget with function fs :

     <-transport-225   [002] d..1    47.136641: usb_ep_queue: ep1out: req ffffffc07b93ef10 length 0/24 sgs 0/0 stream 0 zsI status -115 --> 0
     ->transport-224   [000] d..1    47.153947: usb_ep_queue: ep1in: req ffffffc07c0def10 length 0/24 sgs 0/0 stream 0 zsI status -115 --> 0
              sh-452   [000] d.h2    47.153984: usb_gadget_giveback_request: ep1in: req ffffffc07c0def10 length 24/24 sgs 0/0 stream 0 zsI status 0 --> 0
              sh-452   [000] d.h.    47.154305: usb_gadget_giveback_request: ep1out: req ffffffc07b93ef10 length 24/24 sgs 0/0 stream 0 zsI status 0 --> 0
     <-transport-225   [002] d..1    47.154363: usb_ep_queue: ep1out: req ffffffc07b93ef10 length 0/21 sgs 0/0 stream 0 zsI status -115 --> 0
              sh-452   [000] d.h.    47.154378: usb_gadget_giveback_request: ep1out: req ffffffc07b93ef10 length 21/21 sgs 0/0 stream 0 zsI status 0 --> 0
     <-transport-225   [002] d..1    47.154463: usb_ep_queue: ep1out: req ffffffc07b93ef10 length 0/24 sgs 0/0 stream 0 zsI status -115 --> 0
     ->transport-224   [000] d..1    47.154583: usb_ep_queue: ep1in: req ffffffc07c0def10 length 0/24 sgs 0/0 stream 0 zsI status -115 --> 0
              sh-452   [000] d.h2    47.154600: usb_gadget_giveback_request: ep1in: req ffffffc07c0def10 length 24/24 sgs 0/0 stream 0 zsI status 0 --> 0
     ->transport-224   [000] d..1    47.164863: usb_ep_queue: ep1in: req ffffffc07c0def10 length 0/24 sgs 0/0 stream 0 zsI status -115 --> 0
     ->transport-224   [000] d.h1    47.164887: usb_gadget_giveback_request: ep1in: req ffffffc07c0def10 length 24/24 sgs 0/0 stream 0 zsI status 0 --> 0
     ->transport-224   [000] d..1    47.164907: usb_ep_queue: ep1in: req ffffffc07c0def10 length 0/122 sgs 0/0 stream 0 zsI status -115 --> 0

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-12-11 12:36:49 +02:00
..
function usb: f_fs: Force Reserved1=1 in OS_DESC_EXT_COMPAT 2017-11-28 13:05:31 +02:00
legacy usb: gadget: allow to enable legacy drivers without USB_ETH 2017-11-28 13:05:07 +02:00
udc gadget event trace : add request pointer 2017-12-11 12:36:49 +02:00
composite.c usb: gadget: don't dereference g until after it has been null checked 2017-11-28 13:04:50 +02:00
config.c USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
configfs.c A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
configfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
epautoconf.c USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
functions.c USB: add SPDX identifiers to all remaining files in drivers/usb/ 2017-11-04 11:48:02 +01:00
Kconfig usb: gadget: allow to enable legacy drivers without USB_ETH 2017-11-28 13:05:07 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
u_f.c USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
u_f.h USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
u_os_desc.h USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
usbstring.c USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00