- correctly enter debug state on a "soft_reset_halt" command

- several small fixes
- retry reading from a FT2232 device on incomplete reads


git-svn-id: svn://svn.berlios.de/openocd/trunk@110 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/target/breakpoints.c

@@ -167,6 +167,10 @@ int watchpoint_add(target_t *target, u32 address, u32 length, enum watchpoint_rw
 				INFO("can't add %s watchpoint, resource not available", watchpoint_rw_strings[rw]);
 				return retval;
 				break;
+			case ERROR_TARGET_NOT_HALTED:
+				INFO("can't add watchpoint while target is running");
+				return retval;
+				break;
 			default:
 				ERROR("unknown error");
 				exit(-1);