In my ongoing effort to get bulk mode working for the USB webcam gadget, I’ve stumbled across another clue I’m trying to track down. This appears in the logs, coming from drivers/usb/gadget/udc/tegra_xudc.c line 3030. TRB type 0x25 isn’t defined, but after some searching appears to be TRB_TYPE_HOST_CONTROLLER_EVENT.
Anyone have any idea what the host controller is trying to report back to the kernel? Or a way to debug this further?
[Fri Aug 24 11:26:02 2018] [ 90.266672] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:02 2018] [ 90.623606] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:02 2018] [ 90.890673] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:03 2018] [ 91.154899] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:03 2018] [ 91.420229] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:03 2018] [ 91.684271] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:03 2018] [ 91.948204] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:04 2018] [ 92.212518] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:04 2018] [ 92.477156] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:04 2018] [ 92.741304] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:04 2018] [ 93.004615] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:05 2018] [ 93.268101] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:05 2018] [ 93.531380] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:05 2018] [ 93.795775] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:06 2018] [ 94.059072] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:06 2018] [ 94.323608] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:06 2018] [ 94.587867] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:06 2018] [ 94.854172] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:07 2018] [ 95.118144] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:07 2018] [ 95.382324] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:07 2018] [ 95.646345] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:07 2018] [ 95.910575] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:08 2018] [ 96.173761] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:08 2018] [ 96.440522] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:08 2018] [ 96.704072] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:08 2018] [ 96.967636] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:09 2018] [ 97.232693] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:09 2018] [ 97.496455] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:09 2018] [ 97.759320] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:09 2018] [ 98.022459] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:10 2018] [ 98.287368] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:10 2018] [ 98.550128] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:10 2018] [ 98.813020] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:11 2018] [ 99.078185] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:11 2018] [ 99.340909] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:11 2018] [ 99.604421] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:11 2018] [ 99.867339] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25
[Fri Aug 24 11:26:12 2018] [ 100.130476] tegra-xudc-new 700d0000.xudc: Unrecognized TRB type = 0x25