Is there a limit to the number of control devices DCS will utilize?

[Wile E.]

Backstory:

Because I use VR in my sim rig, I moved it off to the side away from my computer desk. This means I need a dedicated keyboard and mouse (a Razer that IDs as a keyboard as well) for it. I have a keyboard, mouse (another Razer that pretends to also be a keyboard), touchpad, and keypad connected from the desk side. In the sim rig, I have a stick, throttle, pedals, and homemade landing gear lever.

I was having issues where some devices would not show up in windows (latest 10 update) or in DCS. I investigated and learned about USB endpoints. I was using about 150 out of the 96 that my xHCI can support. I bought a PCIe USB controller and distributed the devices evenly. So now windows can detect and utilize all of the devices simultaneously, but DCS wasn't seeing my MFG rudder pedals. I unplugged my keypad that I use for shooter games, scanned for devices in DCS, and was able to see the pedals. The pedals and keypad are on separate USB controllers, so it shouldn't be a USB issue. And I could see them simultaneously in windows, so I don't think it's a windows issue.

If I have what is effectively five keyboards, three mice, stick, throttle, landing gear lever, and rudder connected, is that too much for DCS to handle?

[Rudel_chw]

48 minutes ago, Wile E. said:

is that too much for DCS to handle?

I don’t think DCS has a limit, it will use all the usb devices that windows detects. Most usb connection problems that I have seen are caused by excessive length (when using extension cables) or by low quality usb hubs.

[Wile E.]

But it's not using the rudder pedals until I unplug a keyboard. At that point, they start working, without any other changes.

I have the pedals plugged into the same powered USB hub as the mouse, stick, throttle, and gear lever that DCS has no problem seeing.