2 files changed, 2 insertions, 2 deletions
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index b5cca5d..3d7ab9e 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -130,7 +130,7 @@ acpi_walk_namespace(acpi_object_type type,
 		    void *context, void **return_value);
 
 acpi_status
-acpi_get_devices(char *HID,
+acpi_get_devices(const char *HID,
 		 acpi_walk_callback user_function,
 		 void *context, void **return_value);
 
diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h
index aeb4498..8848265 100644
--- a/include/acpi/acstruct.h
+++ b/include/acpi/acstruct.h
@@ -146,7 +146,7 @@ struct acpi_init_walk_info {
 struct acpi_get_devices_info {
 	acpi_walk_callback user_function;
 	void *context;
-	char *hid;
+	const char *hid;
 };
 
 union acpi_aml_operands {