Allow C/D interfaces to be used on the 4232H, initialize the default interface for...

[libftdi] / src / ftdi.c

diff --git a/src/ftdi.c b/src/ftdi.c
index 27600d6..c417f70 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -132,7 +132,7 @@ struct ftdi_context *ftdi_new()
     Open selected channels on a chip, otherwise use first channel.
 
     \param ftdi pointer to ftdi_context
-    \param interface Interface to use for FT2232C chips.
+    \param interface Interface to use for FT2232C/2232H/4232H chips.
 
     \retval  0: all fine
     \retval -1: unknown interface
@@ -151,6 +151,18 @@ int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface)
             ftdi->in_ep     = 0x04;
             ftdi->out_ep    = 0x83;
             break;
+        case INTERFACE_C:
+            ftdi->interface = 2;
+            ftdi->index     = INTERFACE_C;
+            ftdi->in_ep     = 0x06;
+            ftdi->out_ep    = 0x85;
+            break;
+        case INTERFACE_D:
+            ftdi->interface = 3;
+            ftdi->index     = INTERFACE_D;
+            ftdi->in_ep     = 0x08;
+            ftdi->out_ep    = 0x87;
+            break;
         default:
             ftdi_error_return(-1, "Unknown interface");
     }
@@ -431,11 +443,7 @@ int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev)
     else if (dev->descriptor.bcdDevice == 0x200)
         ftdi->type = TYPE_AM;
     else if (dev->descriptor.bcdDevice == 0x500)
-    {
         ftdi->type = TYPE_2232C;
-        if (!ftdi->index)
-            ftdi->index = INTERFACE_A;
-    }
     else if (dev->descriptor.bcdDevice == 0x600)
         ftdi->type = TYPE_R;
     else if (dev->descriptor.bcdDevice == 0x700)
@@ -443,6 +451,19 @@ int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev)
     else if (dev->descriptor.bcdDevice == 0x800)
         ftdi->type = TYPE_4232H;
 
+    // Set default interface on dual/quad type chips
+    switch(ftdi->type)
+    {
+        case TYPE_2232C:
+        case TYPE_2232H:
+        case TYPE_4232H:
+            if (!ftdi->index)
+                ftdi->index = INTERFACE_A;
+            break;
+        default:
+            break;
+    }
+
     ftdi_error_return(0, "all fine");
 }