This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/osmocom-sdr@lists.osmocom.org/.
Cinaed Simson cinaed.simson at gmail.comOn 10/21/2017 09:08 AM, John wrote: > Hello, > > I am new to this list and to SDR radio. I have purchased an SDR dongle > but am having trougble getting it to work. The dongle was described as > an RTL8232U/R820T2 device. I am running on Linux MINT version 18.2 and > lsusb detects the device as follows: > > Bus 002 Device 051: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T > > Is it an RTL2832U or an RTL2838? I'm not really sure. > > From research it seems that It seems like the fist order of business is > to blacklist the kernel driver? So I have done this by adding a > backlist-rtl.conf file to /etc/modprobe.d and rebooted the computer. I > have also added a rules file to /etc/udev/rules.d with the following > content: > > # Realtek Semiconductor Corp. RTL2838 DVB-T > SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2838", > MODE:="0666", GROUP="adm", SYMLINK+="rtl_sdr" > > I can now access the device in user mode without permission errors so I > assume that this is working OK. > > So my next step was to run rtl_test -t. The output I got contained > errors.If I then try to run any sdr software such as rtl_fm or gqrx, the > device is reset and the application fails to run. Subsequentlly running > 'rtl_test -t' gives: > > No supported devices found. > > Even running rtl_test-t sometimes does the same so i'm not sure whether > the device is 'dropping out' of its own accord. > > I am wondering whether the current crop of devices are supported? Or is > this a configuration problem? > > > The output from rtl_test: > > rtl_test -t The output from rtl_test indicates it's a "2832" - but your home brewed rule is probing for a "2838" which is the E4000. I recommend you install the enclosed udev rules. After you copy them to /etc/udev/rules.d, try udevadm control --reload udevadm trigger If that doesn't work, reboot. The correct rules should have been installed when you installed the sofware - so you may have other problems. And use rtl_test The command rtl_test -t is for the E4000 - and your enclosed error message indicates it's not E4000. -- Cinaed > Found 1 device(s): > 0: Realtek, RTL2838UHIDIR, SN: 00000001 > > Using device 0: Generic RTL2832U OEM > Found Rafael Micro R820T tuner > r82xx_write: i2c wr failed=-1 reg=13 len=7 > r82xx_write: i2c wr failed=-1 reg=0c len=1 > r82xx_init: failed=-1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 > 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 > 43.4 43.9 44.5 48.0 49.6 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > r82xx_write: i2c wr failed=-1 reg=0a len=1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > WARNING: Failed to set sample rate. > No E4000 tuner found, aborting. > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_demod_write_reg failed with -1 > rtlsdr_demod_read_reg failed with -1 > rtlsdr_write_reg failed with -1 > > > -------------- next part -------------- # # Copyright 2012-2013 Osmocom rtl-sdr project # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # # original RTL2832U vid/pid (hama nano, for example) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2832", MODE:="0666" # RTL2832U OEM vid/pid, e.g. ezcap EzTV668 (E4000), Newsky TV28T (E4000/R820T) etc. SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2838", MODE:="0666" # DigitalNow Quad DVB-T PCI-E card (4x FC0012?) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0413", ATTRS{idProduct}=="6680", MODE:="0666" # Leadtek WinFast DTV Dongle mini D (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0413", ATTRS{idProduct}=="6f0f", MODE:="0666" # Genius TVGo DVB-T03 USB dongle (Ver. B) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0458", ATTRS{idProduct}=="707f", MODE:="0666" # Terratec Cinergy T Stick Black (rev 1) (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00a9", MODE:="0666" # Terratec NOXON rev 1 (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b3", MODE:="0666" # Terratec Deutschlandradio DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b4", MODE:="0666" # Terratec NOXON DAB Stick - Radio Energy (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b5", MODE:="0666" # Terratec Media Broadcast DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b7", MODE:="0666" # Terratec BR DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b8", MODE:="0666" # Terratec WDR DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00b9", MODE:="0666" # Terratec MuellerVerlag DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00c0", MODE:="0666" # Terratec Fraunhofer DAB Stick (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00c6", MODE:="0666" # Terratec Cinergy T Stick RC (Rev.3) (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00d3", MODE:="0666" # Terratec T Stick PLUS (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00d7", MODE:="0666" # Terratec NOXON rev 2 (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="0ccd", ATTRS{idProduct}=="00e0", MODE:="0666" # PixelView PV-DT235U(RN) (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1554", ATTRS{idProduct}=="5020", MODE:="0666" # Astrometa DVB-T/DVB-T2 (R828D) SUBSYSTEMS=="usb", ATTRS{idVendor}=="15f4", ATTRS{idProduct}=="0131", MODE:="0666" # Compro Videomate U620F (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="185b", ATTRS{idProduct}=="0620", MODE:="0666" # Compro Videomate U650F (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="185b", ATTRS{idProduct}=="0650", MODE:="0666" # Compro Videomate U680F (E4000) SUBSYSTEMS=="usb", ATTRS{idVendor}=="185b", ATTRS{idProduct}=="0680", MODE:="0666" # GIGABYTE GT-U7300 (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d393", MODE:="0666" # DIKOM USB-DVBT HD SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d394", MODE:="0666" # Peak 102569AGPK (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d395", MODE:="0666" # KWorld KW-UB450-T USB DVB-T Pico TV (TUA9001) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d397", MODE:="0666" # Zaapa ZT-MINDVBZP (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d398", MODE:="0666" # SVEON STV20 DVB-T USB & FM (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d39d", MODE:="0666" # Twintech UT-40 (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d3a4", MODE:="0666" # ASUS U3100MINI_PLUS_V2 (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d3a8", MODE:="0666" # SVEON STV27 DVB-T USB & FM (FC0013) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d3af", MODE:="0666" # SVEON STV21 DVB-T USB & FM SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b80", ATTRS{idProduct}=="d3b0", MODE:="0666" # Dexatek DK DVB-T Dongle (Logilink VG0002A) (FC2580) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1d19", ATTRS{idProduct}=="1101", MODE:="0666" # Dexatek DK DVB-T Dongle (MSI DigiVox mini II V3.0) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1d19", ATTRS{idProduct}=="1102", MODE:="0666" # Dexatek DK 5217 DVB-T Dongle (FC2580) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1d19", ATTRS{idProduct}=="1103", MODE:="0666" # MSI DigiVox Micro HD (FC2580) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1d19", ATTRS{idProduct}=="1104", MODE:="0666" # Sweex DVB-T USB (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="a803", MODE:="0666" # GTek T803 (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="b803", MODE:="0666" # Lifeview LV5TDeluxe (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="c803", MODE:="0666" # MyGica TD312 (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="d286", MODE:="0666" # PROlectrix DV107669 (FC0012) SUBSYSTEMS=="usb", ATTRS{idVendor}=="1f4d", ATTRS{idProduct}=="d803", MODE:="0666"