clarify filename for udev rule

[usb-driver] / README

diff --git a/README b/README
index 5ce99d8823148324754cf8fef0a72073175fada0..f69cadd93fd2a871bfb13a36081dbf52c2db03ec 100644 (file)
--- a/README
+++ b/README
@@ -9,18 +9,15 @@ should work on every kernel version which is supported by libusb and supports
 ppdev. It was written against impact from ISE Webpack 9.1SP1 and tested with
 the following software:
 
- * ISE Webpack 9.2SP1
- * ISE Webpack 9.1SP3
- * ISE Webpack 9.1SP2
- * ISE Webpack 9.1SP1
+ * ISE Webpack 9.2SP1, SP2, SP3
+ * ISE Webpack 9.1SP1, SP2, SP3
  * ISE Webpack 8.2SP3
  * ISE Webpack 8.1SP3
- * ChipScope 9.2.01i
- * ChipScope 9.1.03i
- * ChipScope 9.1.02i
+ * ChipScope 9.2.01i, 9.2.02i
+ * ChipScope 9.1.02i, 9.1.03i
  * ChipScope 8.2.04i
- * EDK 9.1.02i
- * EDK 9.1.01i
+ * EDK 9.2.01i
+ * EDK 9.1.01i, 9.1.02i
  * EDK 8.2.02i
  * EDK 8.1.02i
  * Synplicity Identify
@@ -54,7 +51,7 @@ Notes for the USB cable
 =======================
 
 To use the device as an ordinary user, put the following line in a new
-file in /etc/udev/rules.d/ and restart udev:
+file "libusb-driver.rules" in /etc/udev/rules.d/ and restart udev:
 ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"
 
 
@@ -69,11 +66,19 @@ these steps:
 2. Install the package containing /sbin/fxload from your linux distribution.
    It is usually called "fxload"
 
-3. copy the file /path/to/ISE/bin/lin/xusbdfwu.hex to /usr/share/xusbdfwu.hex
+3. copy the files /path/to/ISE/bin/lin/xusb*.hex to /usr/share/
 
 4. restart udev and re-plug the cable
 
 
+If you have multiple cables connected, you can specify the cable to use
+in the XILINX_USB_DEV environment-variable as "bus:device".
+These identifiers are available in the output of lsusb:
+Bus 001 Device 004: ID 03fd:0008 Xilinx, Inc.
+    ^^^        ^^^
+To use this cable, set the XILINX_USB_DEV variable to "001:004".
+
+
 Notes for the parallel cable
 ============================