diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/CDC.c | 18 | ||||
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/CDC.h | 10 |
2 files changed, 26 insertions, 2 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c index bc8e089a..8a00616b 100644 --- a/LUFA/Drivers/USB/Class/Host/CDC.c +++ b/LUFA/Drivers/USB/Class/Host/CDC.c @@ -261,6 +261,22 @@ uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCI return USB_Host_SendControlRequest(NULL);
}
+uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, const uint8_t Duration)
+{
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = REQ_SendBreak,
+ .wValue = Duration,
+ .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
+ .wLength = 0,
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ return USB_Host_SendControlRequest(NULL);
+}
+
uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, char* Data, const uint16_t Length)
{
if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
@@ -303,8 +319,6 @@ uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, cons uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
{
- uint16_t BytesInPipe = 0;
-
if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
return 0;
diff --git a/LUFA/Drivers/USB/Class/Host/CDC.h b/LUFA/Drivers/USB/Class/Host/CDC.h index bb12c082..3ea2d51d 100644 --- a/LUFA/Drivers/USB/Class/Host/CDC.h +++ b/LUFA/Drivers/USB/Class/Host/CDC.h @@ -190,6 +190,16 @@ */
uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+ /** Sends a Send Break request to the device. This is generally used to seperate data data or to indicate a special condition
+ * to the receiving device.
+ *
+ * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class host configuration and state
+ * \param[in] Duration Duration of the break, in milliseconds
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum
+ */
+ uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, const uint8_t Duration) ATTR_NON_NULL_PTR_ARG(1);
+
/** Sends a given string to the attached USB device, if connected. If a device is not connected when the function is called, the
* string is discarded. Bytes will be queued for transmission to the device until either the pipe bank becomes full, or the
* \ref CDC_Host_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be
|