It wasn’t well explained, but there are two buffers. Even with the sampling loop...

0x00000000 on Oct 8, 2020 | parent | context | favorite | on: Show HN: I reverse engineered my cable modem and t...

It wasn’t well explained, but there are two buffers. Even with the sampling loop as tight as I could get it I think there is just a few ms of inherent delay between when it finishes reading and when it is ready to read again.