On Thu, Sep 26, 2019 at 3:47 PM Tim Harvey <tharvey@xxxxxxxxxxxxx> wrote: > > Greetings, > > I'm running into an issue with a USB UVC Full speed camera, the > PureThermal2 [1] on an IMX6 based ARM board. > > What I find is that I get two video devices registered (the first one > is the expected device, and I'm not clear what the 2nd one is). When I > try to capture a single frame I get 'Failed to submit URB 0 (-28)' > which historically has been due to a bandwidth issue. I encounter this > on the IMX6 EHCI host as well as the OTG host when no other devices > are connected (no hubs either). I've tested with both a 4.20 kernel > and a 5.3 kernel. > > If I plug this device into another board I have based on an OcteonTX > ARM64 cpu with a fairly modern 4.14 kernel and I find that a single > video device gets registered and I can capture just fine. > > Here are some details: > lsusb reports: 1e4e:0100 Cubeternet WebCam > > working system with 4.14 kernel hot-inserting the camera: > [ 495.163276] usb 1-1.2: new full-speed USB device number 6 using xhci_hcd > [ 495.291685] uvcvideo: Found UVC 1.00 device PureThermal (fw:v1.2.2) > (1e4e:0100) > [ 495.300543] input: PureThermal (fw:v1.2.2): PureTh as > /devices/platform/soc@0/848000000000.pci/pci0000:00/0000:00:10.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input1 > [ 496.731214] usb 1-1.2: USB disconnect, device number 6 > [ 496.987294] usb 1-1.2: new full-speed USB device number 7 using xhci_hcd > [ 497.115683] uvcvideo: Found UVC 1.00 device PureThermal (fw:v1.2.2) > (1e4e:0100) > [ 497.124182] input: PureThermal (fw:v1.2.2): PureTh as > /devices/platform/soc@0/848000000000.pci/pci0000:00/0000:00:10.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input2 > root@bionic-newport:~# for i in $(ls -1d > /sys/class/video4linux/video*); do echo $i:$(cat $i/name); done > /sys/class/video4linux/video0:PureThermal (fw:v1.2.2): PureTh > root@bionic-newport:~# v4l2-ctl --device=/dev/video0 --allDriver Info > (not using libv4l2): > Driver name : uvcvideo > Card type : PureThermal (fw:v1.2.2): PureTh > Bus info : usb-0000:00:10.0-1.2 > Driver version: 4.14.4 > Capabilities : 0x84200001 > Video Capture > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04200001 > Video Capture > Streaming > Extended Pix Format > Priority: 2 > Video input : 0 (Camera 1: ok) > Format Video Capture: > Width/Height : 160/120 > Pixel Format : 'UYVY' > Field : None > Bytes per Line : 320 > Size Image : 38400 > Colorspace : sRGB > Transfer Function : Default (maps to sRGB) > YCbCr/HSV Encoding: Default (maps to ITU-R 601) > Quantization : Default (maps to Limited Range) > Flags : > Crop Capability Video Capture: > Bounds : Left 0, Top 0, Width 160, Height 120 > Default : Left 0, Top 0, Width 160, Height 120 > Pixel Aspect: 1/1 > Selection: crop_default, Left 0, Top 0, Width 160, Height 120 > Selection: crop_bounds, Left 0, Top 0, Width 160, Height 120 > Streaming Parameters Video Capture: > Capabilities : timeperframe > Frames per second: 9.000 (9/1) > Read buffers : 0 > brightness 0x00980900 (int) : min=0 max=255 > step=1 default=128 value=128 > contrast 0x00980901 (int) : min=0 max=255 > step=1 default=128 value=128 > root@bionic-newport:~# v4l2-ctl --device=/dev/video0 --stream-mmap > --stream-to=x.raw --stream-count=1 > < > root@bionic-newport:~# ls -l x.raw > -rw-r--r-- 1 root root 38400 Sep 26 22:25 x.raw > > non-working system with 5.3 kernel hot-inserting the device > [ 54.252434] usb 2-1: new full-speed USB device number 2 using ci_hdrc > [ 54.463017] usb 2-1: New USB device found, idVendor=1e4e, > idProduct=0100, bcdDevice= 2.00 > [ 54.463097] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 54.463114] usb 2-1: Product: PureThermal (fw:v1.2.2) > [ 54.463130] usb 2-1: Manufacturer: GroupGets > [ 54.463145] usb 2-1: SerialNumber: 801f001c-5102-3038-3835-393400000000 > [ 54.470265] uvcvideo: Found UVC 1.00 device PureThermal (fw:v1.2.2) > (1e4e:0100) > [ 54.480219] uvcvideo 2-1:1.0: Entity type for entity Extension 3 > was not initialized! > [ 54.480315] uvcvideo 2-1:1.0: Entity type for entity Processing 2 > was not initialized! > [ 54.480342] uvcvideo 2-1:1.0: Entity type for entity Extension 4 > was not initialized! > [ 54.480366] uvcvideo 2-1:1.0: Entity type for entity Extension 5 > was not initialized! > [ 54.480388] uvcvideo 2-1:1.0: Entity type for entity Extension 6 > was not initialized! > [ 54.480409] uvcvideo 2-1:1.0: Entity type for entity Extension 7 > was not initialized! > [ 54.480431] uvcvideo 2-1:1.0: Entity type for entity Extension 21 > was not initialized! > [ 54.480452] uvcvideo 2-1:1.0: Entity type for entity Extension 254 > was not initialized! > [ 54.480473] uvcvideo 2-1:1.0: Entity type for entity Camera 1 was > not initialized! > [ 54.481802] input: PureThermal (fw:v1.2.2): PureTh as > /devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb2/2-1/2-1:1.0/input/input1 > [ 55.733320] usb 2-1: USB disconnect, device number 2 > [ 56.252329] usb 2-1: new full-speed USB device number 3 using ci_hdrc > [ 56.462977] usb 2-1: New USB device found, idVendor=1e4e, > idProduct=0100, bcdDevice= 2.00 > [ 56.462998] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 56.463015] usb 2-1: Product: PureThermal (fw:v1.2.2) > [ 56.463030] usb 2-1: Manufacturer: GroupGets > [ 56.463044] usb 2-1: SerialNumber: 801f001c-5102-3038-3835-393400000000 > [ 56.466135] uvcvideo: Found UVC 1.00 device PureThermal (fw:v1.2.2) > (1e4e:0100) > [ 56.473750] uvcvideo 2-1:1.0: Entity type for entity Extension 3 > was not initialized! > [ 56.473784] uvcvideo 2-1:1.0: Entity type for entity Processing 2 > was not initialized! > [ 56.473807] uvcvideo 2-1:1.0: Entity type for entity Extension 4 > was not initialized! > [ 56.473829] uvcvideo 2-1:1.0: Entity type for entity Extension 5 > was not initialized! > [ 56.473851] uvcvideo 2-1:1.0: Entity type for entity Extension 6 > was not initialized! > [ 56.473875] uvcvideo 2-1:1.0: Entity type for entity Extension 7 > was not initialized! > [ 56.473898] uvcvideo 2-1:1.0: Entity type for entity Extension 21 > was not initialized! > [ 56.473919] uvcvideo 2-1:1.0: Entity type for entity Extension 254 > was not initialized! > [ 56.473941] uvcvideo 2-1:1.0: Entity type for entity Camera 1 was > not initialized! > [ 56.475097] input: PureThermal (fw:v1.2.2): PureTh as > /devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb2/2-1/2-1:1.0/input/input2 > root@bionic-armhf:~# for i in $(ls -1d /sys/class/video4linux/video*); > do echo $i:$(cat $i/name); done > /sys/class/video4linux/video0:ipu1_csi0 capture > /sys/class/video4linux/video1:ipu1_ic_prpenc capture > /sys/class/video4linux/video10:PureThermal (fw:v1.2.2): PureTh > /sys/class/video4linux/video2:ipu1_ic_prpvf capture > /sys/class/video4linux/video3:ipu1_csi1 capture > /sys/class/video4linux/video4:ipu2_csi0 capture > /sys/class/video4linux/video5:ipu2_ic_prpenc capture > /sys/class/video4linux/video6:ipu2_ic_prpvf capture > /sys/class/video4linux/video7:ipu2_csi1 capture > /sys/class/video4linux/video8:ipu_ic_pp csc/scaler > /sys/class/video4linux/video9:PureThermal (fw:v1.2.2): PureTh > ^^^^ why 2 video devices for this camera when the working system only had 1? > root@bionic-armhf:~# v4l2-ctl --device=/dev/video9 --all > Driver Info (not using libv4l2): > Driver name : uvcvideo > Card type : PureThermal (fw:v1.2.2): PureTh > Bus info : usb-ci_hdrc.1-1 > Driver version: 5.3.0 > Capabilities : 0x84A00001 > Video Capture > Metadata Capture > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04200001 > Video Capture > Streaming > Extended Pix Format > Priority: 2 > Video input : 0 (Camera 1: ok) > Format Video Capture: > Width/Height : 160/120 > Pixel Format : 'UYVY' > Field : None > Bytes per Line : 320 > Size Image : 38400 > Colorspace : sRGB > Transfer Function : Default (maps to sRGB) > YCbCr/HSV Encoding: Default (maps to ITU-R 601) > Quantization : Default (maps to Limited Range) > Flags : > Crop Capability Video Capture: > Bounds : Left 0, Top 0, Width 160, Height 120 > Default : Left 0, Top 0, Width 160, Height 120 > Pixel Aspect: 1/1 > Selection: crop_default, Left 0, Top 0, Width 160, Height 120 > Selection: crop_bounds, Left 0, Top 0, Width 160, Height 120 > Streaming Parameters Video Capture: > Capabilities : timeperframe > Frames per second: 9.000 (9/1) > Read buffers : 0 > brightness 0x00980900 (int) : min=0 max=255 > step=1 default=128 value=128 > contrast 0x00980901 (int) : min=0 max=255 > step=1 default=128 value=128 > root@bionic-armhf:~# v4l2-ctl --device=/dev/video9 --stream-mmap > --stream-to=x.raw --stream-count=1 > [ 134.601561] uvcvideo: Failed to submit URB 0 (-28). > VIDIOC_STREAMON: failed: No space left on device > ^^^ the issue > root@bionic-armhf:~# v4l2-ctl --device=/dev/video10 --all > Driver Info (not using libv4l2): > Driver name : uvcvideo > Card type : PureThermal (fw:v1.2.2): PureTh > Bus info : usb-ci_hdrc.1-1 > Driver version: 5.3.0 > Capabilities : 0x84A00001 > Video Capture > Metadata Capture > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04A00000 > Metadata Capture > Streaming > Extended Pix Format > Priority: 2 > root@bionic-armhf:~# v4l2-ctl --device=/dev/video10 --stream-mmap > --stream-to=x.raw --stream-count=1 > unsupported stream type > ^^^ no idea what this 2nd video device is > > I'm also not clear why the device enumerates then disconnects and > enumerates again when plugged in but this happens on the system it > works on as well and I've seen similar things with other devices. > I have found that if I enumerate the camera through a PCIe based XHCI host controller it still registers the 2 v4l2 devices but in this case I can capture fine. So it would appear that this has something to do with the IMX6 ci_hdrc controller. The -ENOSPC is getting returned from drivers/usb/host/ehci-sched.c:iso_stream_schedule() I feel perhaps this is something basic I don't understand regarding USB URB scheduling but I don't get why it occurs on the IMX6 ci_hdrc controller on not an XHCI controller. Regards, Tim -- CONFIDENTIALITY NOTICE: This email constitutes an electronic communication within the meaning of the Electronic Communications Privacy Act, 18 U.S.C. 2510, and its disclosure is strictly limited to the named recipient(s) intended by the sender of this message. This email, and any attachments, may contain confidential and/or proprietary information. If you are not a named recipient, any copying, using, disclosing or distributing to others the information in this email and attachments is STRICTLY PROHIBITED. 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