Author Topic: HID for Teensy 4  (Read 6337 times)


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Re: HID for Teensy 4
« Reply #15 on: July 15, 2021, 02:29:26 pm »
Beware that USB HID can not handle more then 1000 messages per second (1ms maximum latency). If you need hight throughput then USB CDC serial is better then USB HID.
« Last Edit: July 15, 2021, 02:33:37 pm by avra »
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Re: HID for Teensy 4
« Reply #16 on: July 15, 2021, 02:47:12 pm »
I've never really exercised the rawhid stuff other than to check basic operation. But that now leaves my demo program able to talk to an Arduino (etc.) using either a proprietary protocol or PJRC's HID, or to drive GPIO bits via either /sys or /dev on either a PC or an RPi.

I was tinkering with a Linux kernel module over the weekend and was able to get uSec timing precision, but that was very much an exceptional situation and in no way a substitute for having a proper RTOS.

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