Merge branch 'topic/misc' into for-linus

2 files changed, 22 insertions, 7 deletions

diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index 383b94ba8c20..964cb603f7c7 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -18,6 +18,21 @@
 /* v1.0 and v2.0 of this standard have many things in common. For the rest
  * of the definitions, please refer to audio.h */
 
+/*
+ * bmControl field decoders
+ *
+ * From the USB Audio spec v2.0:
+ *
+ *   bmaControls() is a (ch+1)-element array of 4-byte bitmaps,
+ *   each containing a set of bit pairs. If a Control is present,
+ *   it must be Host readable. If a certain Control is not
+ *   present then the bit pair must be set to 0b00.
+ *   If a Control is present but read-only, the bit pair must be
+ *   set to 0b01. If a Control is also Host programmable, the bit
+ *   pair must be set to 0b11. The value 0b10 is not allowed.
+ *
+ */
+
 static inline bool uac2_control_is_readable(u32 bmControls, u8 control)
 {
         return (bmControls >> (control * 2)) & 0x1;
@@ -121,7 +136,7 @@ struct uac2_feature_unit_descriptor {
 
 /* 4.9.2 Class-Specific AS Interface Descriptor */
 
-struct uac_as_header_descriptor_v2 {
+struct uac2_as_header_descriptor {
         __u8 bLength;
         __u8 bDescriptorType;
         __u8 bDescriptorSubtype;
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index c51200c715e5..a54b8255d75f 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -39,8 +39,8 @@
 #define UAC_MIXER_UNIT                  0x04
 #define UAC_SELECTOR_UNIT               0x05
 #define UAC_FEATURE_UNIT                0x06
-#define UAC_PROCESSING_UNIT_V1          0x07
-#define UAC_EXTENSION_UNIT_V1           0x08
+#define UAC1_PROCESSING_UNIT            0x07
+#define UAC1_EXTENSION_UNIT             0x08
 
 /* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
 #define UAC_AS_GENERAL                  0x01
@@ -151,7 +151,7 @@
 
 /* Terminal Control Selectors */
 /* 4.3.2  Class-Specific AC Interface Descriptor */
-struct uac_ac_header_descriptor_v1 {
+struct uac1_ac_header_descriptor {
         __u8  bLength;                  /* 8 + n */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
         __u8  bDescriptorSubtype;       /* UAC_MS_HEADER */
@@ -165,7 +165,7 @@ struct uac_ac_header_descriptor_v1 {
 
 /* As above, but more useful for defining your own descriptors: */
 #define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n)                     \
-struct uac_ac_header_descriptor_v1_##n {                        \
+struct uac1_ac_header_descriptor_##n {                  \
         __u8  bLength;                                          \
         __u8  bDescriptorType;                                  \
         __u8  bDescriptorSubtype;                               \
@@ -205,7 +205,7 @@ struct uac_input_terminal_descriptor {
 #define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL            0x01
 
 /* 4.3.2.2 Output Terminal Descriptor */
-struct uac_output_terminal_descriptor_v1 {
+struct uac1_output_terminal_descriptor {
         __u8  bLength;                  /* in bytes: 9 */
         __u8  bDescriptorType;          /* CS_INTERFACE descriptor type */
         __u8  bDescriptorSubtype;       /* OUTPUT_TERMINAL descriptor subtype */
@@ -395,7 +395,7 @@ static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_desc
 }
 
 /* 4.5.2 Class-Specific AS Interface Descriptor */
-struct uac_as_header_descriptor_v1 {
+struct uac1_as_header_descriptor {
         __u8  bLength;                  /* in bytes: 7 */
         __u8  bDescriptorType;          /* USB_DT_CS_INTERFACE */
         __u8  bDescriptorSubtype;       /* AS_GENERAL */