====== DCAM IIDC camera ======

<code>
[ 1161.810809] usb 10-2: new SuperSpeed Gen 1 USB device number 5 using xhci_hcd
[ 1161.874950] usb 10-2: New USB device found, idVendor=1e10, idProduct=3300, bcdDevice= 0.00
[ 1161.874953] usb 10-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1161.874955] usb 10-2: Product: Chameleon3 CM3-U3-31S4C
[ 1161.874957] usb 10-2: Manufacturer: Point Grey Research
[ 1161.874959] usb 10-2: SerialNumber: 01232DBD
</code>

basler
<code>
[1293873.210971] usb 3-1.4.4: Product: acA2040-55uc
[1293873.210972] usb 3-1.4.4: Manufacturer: Basler
[1293873.210973] usb 3-1.4.4: SerialNumber: 23255275

</code>

/etc/udev/rules.d/50-flir.rules (arch)
<code>
# Point grey
SUBSYSTEM=="usb", ATTR{idVendor}=="1e10", MODE:="0666", TAG+="uaccess"
# Basler
SUBSYSTEM=="usb", ATTR{idVendor}=="2676", MODE:="0666", TAG+="uaccess", TAG+="udev-acl"
</code>

/etc/default/grub
<code>
... usbcore.usbfs_memory_mb=1000
</code>

or temporary
<code>
sudo sh -c 'echo 1000 > /sys/module/usbcore/parameters/usbfs_memory_mb'
</code>


disable autosuspend
<code>
sudo bash -c 'echo -1 > /sys/module/usbcore/parameters/autosuspend'
</code>




===== setup =====

<code>
yay libdc1394
</code>

===== basler =====

[[https://www.baslerweb.com/en/sales-support/downloads/software-downloads/|download pylon]]

<code>
tar zxvf pylon-5.2.0.13457-x86_64.tar.gz
cd pylon-5.2.0.13457-x86_64
sudo tar -C /opt -xzvf pylonSDK*.tar.gz
</code>

test
<code>
/opt/pylon5/bin/PylonViewerApp
</code>

python
<code>
pip install https://github.com/basler/pypylon/releases/download/1.5.1/pypylon-1.5.1-cp37-cp37m-linux_x86_64.whl
</code>

==== focal length ====


focal length = (known pixel Width * knownDistance) / known width


Distance (cm/inches/etc.) =( known Width * focal length) / pixel Width