Make libticables2 work (on linux) with dbus-behind-uart-on-ttyUSB bridges like dbus_ti_link_uart_verilog. Change baudrate to 115200. Enable RTS/CTS flow control.

libticables2_uart_rtscts.patch

diff --unified --text libticables2-1.3.5/src/linux/detect.c libticables2-1.3.5-fpga/src/linux/detect.c
--- libticables2-1.3.5/src/linux/detect.c	2016-04-04 14:59:39.000000000 +0900
+++ libticables2-1.3.5-fpga/src/linux/detect.c	2020-10-09 16:38:56.564237490 +0900
@@ -331,7 +331,7 @@
     }
 
     serinfo.reserved_char[0] = 0;
-    if (ioctl(fd, TIOCGSERIAL, &serinfo) < 0)
+    /*if (ioctl(fd, TIOCGSERIAL, &serinfo) < 0)
     {
         ticables_warning(_("Error running TIOCGSERIAL ioctl on device %s - %s"), devname, strerror(errno));
         close(fd);
@@ -343,7 +343,7 @@
         ticables_info(_("    is useable: no"));
         close(fd);
         return ERR_TTDEV;
-    }
+    }*/
 
     ticables_info(_("    is useable: yes"));
     close(fd);
diff --unified --text libticables2-1.3.5/src/linux/link_gry.c libticables2-1.3.5-fpga/src/linux/link_gry.c
--- libticables2-1.3.5/src/linux/link_gry.c	2016-04-04 14:59:39.000000000 +0900
+++ libticables2-1.3.5-fpga/src/linux/link_gry.c	2020-10-11 10:03:46.620969558 +0900
@@ -55,7 +55,7 @@
 #define DEVNAME "cuad"
 #endif
 #else
-#define DEVNAME "ttyS"
+#define DEVNAME "ttyUSB"
 #endif
 
 static int gry_prepare(CableHandle *h)
@@ -135,8 +135,9 @@
 	termset->c_cc[VMIN] = 0;
 	termset->c_cc[VTIME] = h->timeout;
 
-	cfsetispeed(termset, B9600);
-	cfsetospeed(termset, B9600);
+	termset->c_cflag |= CRTSCTS;
+	cfsetispeed(termset, B115200);
+	cfsetospeed(termset, B115200);
 	tcsetattr(dev_fd, TCSANOW, termset);
 
 	if (tcflush(dev_fd, TCIOFLUSH) == -1)