SMTPMIC(4) Device Drivers Manual (riscv64) SMTPMIC(4)

smtpmic — SpacemiT P1 Power Management IC

smtpmic* at iic?

The smtpmic driver provides support for the real-time clock in the SpacemiT P1 Power Management IC. It also provides a way to reset or shutdown some machines that do not implement this functionality in their firmware.

iic(4), intro(4)

The smtpmic driver first appeared in OpenBSD 7.9.

The smtpmic driver was written by Mark Kettenis <kettenis@openbsd.org>.

OpenBSD 7.9 April 12, 2026 SMTPMIC(4)