scmi_shmem_read
scmi_shmem_read(dev, SMT_OFFSET_CHAN_STATUS, &channel_status,
scmi_shmem_read(dev, SMT_OFFSET_LENGTH, &length, SMT_SIZE_LENGTH);
scmi_shmem_read(dev, SMT_OFFSET_MSG_HEADER, &header,
scmi_shmem_read(dev, SMT_SIZE_HEADER, buf, payld_len);
scmi_shmem_read(dev, SMT_OFFSET_CHAN_STATUS, &status,
static void scmi_shmem_read(device_t, bus_size_t, void *, bus_size_t);