Use the PNP flag as seen with FTD2XX

[libftdi] / src / ftdi.c

diff --git a/src/ftdi.c b/src/ftdi.c
index 409e294..5ffad8f 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -2180,18 +2180,25 @@ int ftdi_set_error_char(struct ftdi_context *ftdi,
 /**
     Init eeprom with default values.
     \param ftdi pointer to ftdi_context
-
+    \param manufacturer String to use as Manufacturer
+    \param product String to use as Product description
+    \param serial String to use as Serial number description
+    
+    \retval  0: all fine
+    \retval -1: No struct ftdi_context
+    \retval -2: No struct ftdi_eeprom
 */
-void ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
+int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
                               char * product, char * serial)
 {
     struct ftdi_eeprom *eeprom;
 
     if (ftdi == NULL)
-        return;
+        ftdi_error_return(-1, "No struct ftdi_context");
+        
 
     if (ftdi->eeprom == NULL)
-        return;
+        ftdi_error_return(-2,"No struct ftdi_eeprom"); 
 
     eeprom = ftdi->eeprom;
     memset(eeprom, 0, sizeof(struct ftdi_eeprom));
@@ -2251,6 +2258,7 @@ void ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer,
     }
     else
         eeprom->size = -1;
+    return 0;
 }
 
 /**
@@ -2319,7 +2327,7 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi)
     size_check -= serial_size*2;
 
     /* Space for the string type and pointer bytes */
-    size_check -= -6;
+    size_check -= -9;
 
     // eeprom size exceeded?
     if (size_check < 0)
@@ -2453,6 +2461,13 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi)
         output[i & k] = eeprom->serial[j], i++;
         output[i & k] = 0x00, i++;
     }
+    output[i & k] = 0x02; /* as seen when written with FTD2XX */
+    i++;
+    output[i & k] = 0x03; /* as seen when written with FTD2XX */
+    i++;
+    output[i & k] = eeprom->is_not_pnp; /* as seen when written with FTD2XX */
+    i++;
+
     output[0x13] = serial_size*2 + 2;
 
     /* Fixme: ftd2xx seems to append 0x02, 0x03 and 0x01 for PnP = 0 or 0x00 else */
@@ -2886,6 +2901,7 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose)
             fprintf(stdout, "Pull IO pins low during suspend\n");
         if(eeprom->remote_wakeup)
             fprintf(stdout, "Enable Remote Wake Up\n");
+        fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1);
         if (ftdi->type >= TYPE_2232C)
             fprintf(stdout,"Channel A has Mode %s%s%s\n", 
                     channel_mode[eeprom->channel_a_type],