diff options
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/Pipe.h')
-rw-r--r-- | LUFA/Drivers/USB/LowLevel/Pipe.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.h b/LUFA/Drivers/USB/LowLevel/Pipe.h index 294545804e..fd01b5c58c 100644 --- a/LUFA/Drivers/USB/LowLevel/Pipe.h +++ b/LUFA/Drivers/USB/LowLevel/Pipe.h @@ -292,6 +292,12 @@ /** Freezes the selected pipe, preventing it from communicating with an attached device. */
static inline void Pipe_Freeze(void);
+ /** Determines if the currently selected pipe is frozen, and not able to accept data.
+ *
+ * \return Boolean true if the currently selected pipe is frozen, false otherwise
+ */
+ static inline bool Pipe_IsFrozen(void);
+
/** Clears the master pipe error flag. */
static inline void Pipe_ClearError(void);
@@ -445,6 +451,8 @@ #define Pipe_Unfreeze() MACROS{ UPCONX &= ~(1 << PFREEZE); }MACROE
#define Pipe_Freeze() MACROS{ UPCONX |= (1 << PFREEZE); }MACROE
+
+ #define Pipe_IsFrozen() ((UPCONX & (1 << PFREEZE)) ? true : false)
#define Pipe_ClearError() MACROS{ UPINTX &= ~(1 << PERRI); }MACROE
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