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authorRuslan Bilovol <ruslan.bilovol@gmail.com>2017-06-25 16:23:45 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2017-07-18 09:33:06 +0300
commit8bd226f9a7dc18740a916dcba3112f2bfc3ad9e8 (patch)
treebee74c146c1533cc075cf04da9198562c359caf8
parentab1d53d598be211968c5b4eeee4c5b67d6e21602 (diff)
include: usb: audio: specify exact endiannes of descriptors
USB spec says that multiple byte fields are stored in little-endian order (see chapter 8.1 of USB2.0 spec and chapter 7.1 of USB3.0 spec), thus mark such fields as LE for UAC1 and UAC2 headers Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
-rw-r--r--include/linux/usb/audio-v2.h14
-rw-r--r--include/uapi/linux/usb/audio.h6
2 files changed, 10 insertions, 10 deletions
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index c5f2158ab00e..fd73bc0e9027 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -115,13 +115,13 @@ struct uac2_input_terminal_descriptor {
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bTerminalID;
- __u16 wTerminalType;
+ __le16 wTerminalType;
__u8 bAssocTerminal;
__u8 bCSourceID;
__u8 bNrChannels;
- __u32 bmChannelConfig;
+ __le32 bmChannelConfig;
__u8 iChannelNames;
- __u16 bmControls;
+ __le16 bmControls;
__u8 iTerminal;
} __attribute__((packed));
@@ -132,11 +132,11 @@ struct uac2_output_terminal_descriptor {
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bTerminalID;
- __u16 wTerminalType;
+ __le16 wTerminalType;
__u8 bAssocTerminal;
__u8 bSourceID;
__u8 bCSourceID;
- __u16 bmControls;
+ __le16 bmControls;
__u8 iTerminal;
} __attribute__((packed));
@@ -164,9 +164,9 @@ struct uac2_as_header_descriptor {
__u8 bTerminalLink;
__u8 bmControls;
__u8 bFormatType;
- __u32 bmFormats;
+ __le32 bmFormats;
__u8 bNrChannels;
- __u32 bmChannelConfig;
+ __le32 bmChannelConfig;
__u8 iChannelNames;
} __attribute__((packed));
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index d2314be4f0c0..a4680a5bf5dd 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -333,7 +333,7 @@ struct uac_processing_unit_descriptor {
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bUnitID;
- __u16 wProcessType;
+ __le16 wProcessType;
__u8 bNrInPins;
__u8 baSourceID[];
} __attribute__ ((packed));
@@ -491,8 +491,8 @@ struct uac_format_type_ii_ext_descriptor {
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bFormatType;
- __u16 wMaxBitRate;
- __u16 wSamplesPerFrame;
+ __le16 wMaxBitRate;
+ __le16 wSamplesPerFrame;
__u8 bHeaderLength;
__u8 bSideBandProtocol;
} __attribute__((packed));