On Tue, Apr 04, 2023 at 03:00:11PM +0900, Jaewon Kim wrote: > This patch adds IRQ based PIO mode instead of cpu polling. > By using the FIFO trigger level, interrupts are received. > CPU consumption is reduced in PIO mode because registers are not > constantly checked. Is there some lower limit where it's still worth using polling, for example for just one or two bytes like a register address? Taking an interrupt isn't free...
Attachment:
signature.asc
Description: PGP signature
