multi_read
KUNIT_CASE_PARAM(multi_read, regcache_types_gen_params),
void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
ah->reg_ops.multi_read = ath9k_multi_regread;
(_ah)->reg_ops.multi_read((_ah), (_addr), (_val), (_cnt))
ah->reg_ops.multi_read = ath9k_multi_ioread32;
.multi_read = adt7316_i2c_multi_read,
.multi_read = adt7316_spi_multi_read,
int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data);