[libcamera-devel] Potential integration of thermal cameras into v4l

[Sophie Friedrich]

Hello,

Yeah the link was broken before, but I already fixed it. I'm not
sure if my reply actually reached the mailing list (it accidentally
mixed up my sending adress). At least from the libcamera I got a
bounce, as I'm not a member.

On 10/01/2023 14:13, Laurent Pinchart wrote:
> Sophie, could you please share the `lsusb -v` output for the device (you
> can limit it to a specific device with `-d VID:PID`), running as root
> (e.g. with `sudo`) if possible ?

Note here that the idVendor and iManufacturer do not match. The
camera uses the same USB VID:PID as the Netchip "Gadget Zero", because
of course it does…

$ sudo lsusb -v -d 0525:a4a0
Bus 001 Device 019: ID 0525:a4a0 Netchip Technology, Inc. Linux-USB 
"Gadget Zero"
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.01
   bDeviceClass            0
   bDeviceSubClass         0
   bDeviceProtocol         0
   bMaxPacketSize0        64
   idVendor           0x0525 Netchip Technology, Inc.
   idProduct          0xa4a0 Linux-USB "Gadget Zero"
   bcdDevice            2.00
   iManufacturer           1 Wuhan Guide Infrared Co., Ltd.
   iProduct                2 MobIR Air
   iSerial                 3 ZX01A19
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength       0x0040
     bNumInterfaces          2
     bConfigurationValue     1
     iConfiguration          4 MFI Configure
     bmAttributes         0xc0
       Self Powered
     MaxPower              100mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           2
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    240
       bInterfaceProtocol      0
       iInterface              5 iAP Interface
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x02  EP 2 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    240
       bInterfaceProtocol      1
       iInterface              6 com.guidesensmart.mobir-air
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       1
       bNumEndpoints           2
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    240
       bInterfaceProtocol      1
       iInterface              6 com.guidesensmart.mobir-air
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x01  EP 1 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               0
Binary Object Store Descriptor:
   bLength                 5
   bDescriptorType        15
   wTotalLength       0x000c
   bNumDeviceCaps          1
   USB 2.0 Extension Device Capability:
     bLength                 7
     bDescriptorType        16
     bDevCapabilityType      2
     bmAttributes   0x00000002
       HIRD Link Power Management (LPM) Supported
Device Status:     0x0001
   Self Powered