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Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/CDC.h')
-rw-r--r--LUFA/Drivers/USB/Class/Host/CDC.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/CDC.h b/LUFA/Drivers/USB/Class/Host/CDC.h
index 466f141db..9433c59fa 100644
--- a/LUFA/Drivers/USB/Class/Host/CDC.h
+++ b/LUFA/Drivers/USB/Class/Host/CDC.h
@@ -92,12 +92,13 @@
struct
{
uint8_t HostToDevice; /**< Control line states from the host to device, as a set of CDC_CONTROL_LINE_OUT_*
- * masks.
+ * masks - to notify the device of changes to these values, call the
+ * \ref CDC_Host_SendControlLineStateChange() function.
*/
uint8_t DeviceToHost; /**< Control line states from the device to host, as a set of CDC_CONTROL_LINE_IN_*
- * masks.
+ * masks. This value is updated each time \ref CDC_Host_USBTask() is called.
*/
- } ControlLineStates;
+ } ControlLineStates; /**< Current states of the virtual serial port's control lines between the device and host. */
struct
{
@@ -109,7 +110,11 @@
* CDCDevice_LineCodingParity_t enum
*/
uint8_t DataBits; /**< Bits of data per character of the virtual serial port */
- } LineEncoding;
+ } LineEncoding; /** Line encoding used in the virtual serial port, for the device's information. This is generally
+ * only used if the virtual serial port data is to be reconstructed on a physical UART. When set
+ * by the host application, the \ref CDC_Host_SetLineEncoding() function must be called to push
+ * the changes to the device.
+ */
} State; /**< State data for the USB class interface within the device. All elements in this section
* <b>may</b> be set to initial values, but may also be ignored to default to sane values when
* the interface is enumerated.