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-rw-r--r--include/sound/soc-acpi.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h
index d1aaf87..83320af 100644
--- a/include/sound/soc-acpi.h
+++ b/include/sound/soc-acpi.h
@@ -27,6 +27,9 @@ struct snd_soc_acpi_package_context {
bool data_valid;
};
+/* codec name is used in DAIs is i2c-<HID>:00 with HID being 8 chars */
+#define SND_ACPI_I2C_ID_LEN (4 + ACPI_ID_LEN + 3 + 1)
+
#if IS_ENABLED(CONFIG_ACPI)
/* translation fron HID to I2C name, needed for DAI codec_name */
const char *snd_soc_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
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