I adjusted IRremote to work on the Digispark and with configurable protocol support (I only need one type of remote decoder) its plenty small to fit next to V-USB.
But when I enable both at the same time, the LED doesn't blink on incoming IR pulses and there is no USB device detected.
IRremote runs at Timer1 every 50us. I gather that V-USB runs at one of the pin interrupts and as such should not break the Timer1 interrupt.
Even if I do not manage to run the updateUSB function fast enough (it should be in the main loop with or without 1 ms delays) it still won't work.
Do I miss something to make both work at the same time?