appletouch touchpad non-responsive on linux5.8

[retronica]

System

• xuname:
  Void 5.8.8_1 ppc PowerMac uptodate FF
• package:
  affected package(s) including the version: linux5.8-5.8.8_1 (but also other 5.8 series)
• device:
  PowerBook G4 1.5GHz (PowerBook6,8). Touchpad is the inbuilt touchpad detected by the system as "appletouch"

  Expected behavior

  dmesg | grep appletouch from booting using linux5.4-5.4.64_1: [16.750986] input appletouch as /devices/pci0001:10/0001:10:1a.0/usb2/2-2/2-2:1.0/input/input5 [16.802967] usbcore: registered new interface driver appletouch Touchpad works normally

  Actual behavior

  dmesg | grep appletouch from booting using linux5.8-5.8.8_1: [16.992741] input appletouch as /devices/pci0001:10/0001:10:1a.0/usb2/2-2/2-2:1.0/input/input8 [17.028812] usbcore: registered new interface driver appletouch [17.045798] appletouch 2-2:1.0: input: appletouch disconnected [17.046998] input appletouch as /devices/pci0001:10/0001:10:1a.0/usb2/2-2/2-2:1.0/input/input10 Touchpad ends up completely non-responsive

  Steps to reproduce the behavior

  Boot device using linux5.8 kernel (linux5.4 and linux4.4 [at least] work as expected)

[q66]

can you test 5.9?

[retronica]

Normally functionality appears to be restored in 5.9.