X-Git-Url: http://developer.intra2net.com/git/?p=libftdi;a=blobdiff_plain;f=src%2Fftdi.h;h=ff72d05853c52ea1db6aaf95c97f913ea0a22f54;hp=d8b4001987e6f4100b2671fd7e39016b8bc78e37;hb=7cc9950ec21b5cdba8b80ed18dbf686e5024aee1;hpb=4c9e381219d807ff74556eb35cae1c90986242bc

diff --git a/src/ftdi.h b/src/ftdi.h
index d8b4001..ff72d05 100644
--- a/src/ftdi.h
+++ b/src/ftdi.h
@@ -113,6 +113,10 @@ enum ftdi_interface {
 
 #define SIO_RTS_CTS_HS (0x1 << 8)
 
+/* marker for unused usb urb structures
+   (taken from libusb) */
+#define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
+
 /**
     \brief Main context structure for all libftdi functions.
 
@@ -160,6 +164,11 @@ struct ftdi_context {
 
     /// String representation of last error
     char *error_str;
+
+    /// Buffer needed for async communication
+    char *async_usb_buffer;
+    /// Number of URB-structures we can buffer
+    unsigned int async_usb_buffer_size;
 };
 
 /**
@@ -248,10 +257,12 @@ extern "C" {
     int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
 
     int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
-    int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
     int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
     int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
 
+    int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
+    void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
+
     int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask);
     int ftdi_disable_bitbang(struct ftdi_context *ftdi);
     int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);