added helper script and smalle note in README for blacklisting

Signed-off-by: hayati ayguen <h_ayguen@web.de>

README.md

@@ -19,6 +19,8 @@ https://osmocom.org/projects/rtl-sdr/wiki
  thus can be used without blacklisting dvb_usb_rtl28xxu below /etc/modprobe.d/
 - this allows to use a second RTL dongle for use with DVB in parallel
 - the IDs can be programmed with 'rtl_eeprom -n' or 'rtl_eeprom -g realtek_sdr'
+- for permanent blacklisting you might check/call following from the clone git directory
+    * ./install-blacklist.sh
 
 
 # Contributing

install-blacklist.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+BLACKLIST_FN=""
+if [ -f /etc/modprobe.d/rtlsdr-blacklist.conf ]; then
+  BLACKLIST_FN="rtlsdr-blacklist.conf"
+  echo "found /etc/modprobe.d/${BLACKLIST_FN}"
+elif [ -f /etc/modprobe.d/blacklist-rtl8xxxu.conf ]; then
+  BLACKLIST_FN="blacklist-rtl8xxxu.conf"
+  echo "found /etc/modprobe.d/${BLACKLIST_FN}"
+elif [ -f /etc/modprobe.d/raspi-blacklist.conf ]; then
+  BLACKLIST_FN="raspi-blacklist.conf"
+  echo "found /etc/modprobe.d/${BLACKLIST_FN}"
+else
+  BLACKLIST_FN="rtlsdr-blacklist.conf"
+  echo "could not find existing blacklist. will use /etc/modprobe.d/${BLACKLIST_FN}"
+fi
+
+if [ -f /etc/modprobe.d/${BLACKLIST_FN} ]; then
+  cat /etc/modprobe.d/${BLACKLIST_FN} rtlsdr-blacklist.conf | sort | uniq >/dev/shm/${BLACKLIST_FN}
+  cp /dev/shm/${BLACKLIST_FN} /etc/modprobe.d/${BLACKLIST_FN}
+  echo "updated /etc/modprobe.d/${BLACKLIST_FN} ; reboot to apply"
+else
+  cp rtlsdr-blacklist.conf /etc/modprobe.d/${BLACKLIST_FN}
+  echo "created /etc/modprobe.d/${BLACKLIST_FN} ; reboot to apply"
+fi
+

rtlsdr-blacklist.conf

@@ -0,0 +1,6 @@
+blacklist dvb_usb_rtl28xxu
+blacklist dvb_usb_v2
+blacklist rtl_2830
+blacklist rtl_2832
+blacklist r820t
+blacklist rtl8xxxu