smb_hc_read
if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
if (smb_hc_read(hc, ACPI_SMB_BLOCK_COUNT, &sz)) {
smb_hc_read(hc, ACPI_SMB_DATA + i, &data[i]);
if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
smb_hc_read(hc, ACPI_SMB_ALARM_ADDRESS, &address);