| SDHC(4) | Device Drivers Manual | SDHC(4) | 
sdhc —
sdhc* at acpi?
sdhc* at pci?
sdhc* at cardbus? function ?
sdmmc* at sdhc?
sdhc driver provides support for SD controllers
  following the SD Host Controller Standard Simplified Specification.
The sdmmc(4) subsystem performs SD/MMC transactions to communicate with whatever MMC, SD, SDHC, or SDIO devices are inserted into the SD slot.
sdhc driver was written by Uwe
  Stuehler ⟨uwe@openbsd.org⟩ for
  OpenBSD and ported to NetBSD
  by NONAKA Kimihiro ⟨nonaka@netbsd.org⟩.
| June 21, 2016 | NetBSD 9.4 |