Wrong joystick button events after d87e419239b3eb4468a757a8208d3dc7f001b2e8

[svpcom]

Expected Behavior

Joystick model: Sony DualShock 4 V2 Joystick has 15 buttons. Each button press is one event.

Current Behavior

Joystick model: Sony DualShock 4 V2 Joystick has 17 buttons. Press button 11 generate events for 11 and 13, press button 12 generate events for 12 and 14

Steps to Reproduce:

1. Run QGC
2. Open Vehicle setup
3. Open joystick tab

System Information

When posting bug reports, include the following information

• Operating System: Ubuntu 18.04
• QGC Version: 4.2.3
• QGC build: from github releases
• Flight Controller: px4-sitl
• Autopilot (with version): px4-1.13

Detailed Description

The problem was introduced in commit d87e419239b3eb4468a757a8208d3dc7f001b2e8 ( Fix Joystick Button Count )

Log Files and Screenshots

[zdanek]

Hi. Can you check and post output from command line call to jstest? For example jstest /dev/input/js0 or other if your Dualshock registers as different jsX file. jstest is available via apt.

Check if 11 and 12 generate single event on the list.

[svpcom]

jstest shows that single event was generated. Also there are two additional buttons that exists in jstest, but unavailable in QGC. It is L2 and R2 buttons (https://manuals.playstation.net/document/en/ps4/basic/pn_controller.html)

[HTRamsey]

Probably worthwhile waiting for the SDL database to be updated to see if it is fixed