IOKit hid input stopped working in Big Sur

App & System Services Drivers
ejeklint OP
Created Sep ’21
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I have a digital multimeter that logs data to computer through USB serial. After upgrade to Big Sur it suddenly stopped working. IOKit properly detects device connect/disconnect and HID reports are coming in, but with no data. HID report contains nothing but zeroes...

I'm stuck and in need of help. Have anything changed in IOKit.hid interface between 10.15 and 11?

Answered by ejeklint in 689989022

DUH! Problem was elsewhere (wrong settings in multimeter), just a coincidence it happened when upgrading to Big Sur. 🤦🏼‍♂️

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ejeklint OP
Oct ’21
Accepted Answer

DUH! Problem was elsewhere (wrong settings in multimeter), just a coincidence it happened when upgrading to Big Sur. 🤦🏼‍♂️

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IOKit hid input stopped working in Big Sur
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