Index: firmware/drivers/generic_i2c.c
===================================================================
--- firmware/drivers/generic_i2c.c	(revision 21245)
+++ firmware/drivers/generic_i2c.c	(working copy)
@@ -91,9 +91,9 @@
 
     iface->sda_input();
 
-    iface->delay_su_dat();
     /* clock in each bit, MSB first */
     for ( i=0x80; i; i>>=1 ) {
+        iface->delay_su_dat();
         iface->scl_hi();
         iface->delay_thigh();
         if (iface->sda())
@@ -123,7 +123,6 @@
         iface->scl_hi();
         iface->delay_thigh();
         iface->scl_lo();
-        iface->delay_hd_dat();
    }
 
    return i2c_getack(iface);