Symbol: __bitfield
sys/dev/sdmmc/sdmmcreg.h
285
(__bitfield((uint32_t *)(status), 400 + (group - 1) * 16, 16))
sys/dev/sdmmc/sdmmcreg.h
294
#define MMC_RSP_BITS(resp, start, len) __bitfield((resp), (start)-8, (len))