________________________________ Da: András Retzler <retzlerandras(a)gmail.com> A: IZ8MBW Fabio <iz8mbw(a)yahoo.it>it>; osmocom-sdr(a)lists.osmocom.org Inviato: Lunedì 23 Dicembre 2013 13:46 Oggetto: Re: RTL2832U on Raspberry Pi Hi Fabio, I think you should run the following before running any rtl_* commands: sudo rmmod dvb_usb_rtl28xxu You may also blacklist the dvb_usb_rtl28xxu kernel module, so it won't load when you plug in the RTL device. 73! Andras, HA7ILM 2013/12/23 IZ8MBW Fabio <iz8mbw(a)yahoo.it> Hi.

Hi. Now it works!!! The procedure is to: 1. add the line: blacklist dvb_usb_rtl28xxu into the file /etc/modprobe.d/raspi-blacklist.conf 2. reboot Many thanks! A question: there is a way to start "rtp_tcp" in silent mode (without messages on the terminal)? Thanks! 73 Fabio, IZ8MBW www.iz8mbw.net ------------------------------ *Da:* András Retzler <retzlerandras(a)gmail.com> *A:* IZ8MBW Fabio <iz8mbw(a)yahoo.it>it>; osmocom-sdr(a)lists.osmocom.org *Inviato:* Lunedì 23 Dicembre 2013 13:46 *Oggetto:* Re: RTL2832U on Raspberry Pi Hi Fabio, I think you should run the following before running any rtl_* commands: sudo rmmod dvb_usb_rtl28xxu You may also blacklist the dvb_usb_rtl28xxu kernel module, so it won't load when you plug in the RTL device. 73! Andras, HA7ILM 2013/12/23 IZ8MBW Fabio <iz8mbw(a)yahoo.it> Hi. I'm trying to install OSMOSdr on a Raspberry Pi. I'm following this guide: http://www.hamradioscience.com/raspberry-pi-as-remote-server-for-rtl2832u-s… After installing I try to test the RTL2832 USB SDR but I have this error: root@raspberrypi:~/rtl2832/rtl-sdr/build# rtl_test Found 1 device(s): 0: Generic RTL2832U OEM Using device 0: Generic RTL2832U OEM Kernel driver is active, or device is claimed by second instance of librtlsdr. In the first case, please either detach or blacklist the kernel module (dvb_usb_rtl28xxu), or enable automatic detaching at compile time. usb_claim_interface error -6 Failed to open rtlsdr device #0. This is my lsmod: root@raspberrypi:~# lsmod Module Size Used by tun 18459 2 i2c_dev 5557 0 w1_therm 2921 0 w1_gpio 2363 0 wire 24832 2 w1_gpio,w1_therm cn 4783 1 wire snd_bcm2835 16165 0 evdev 9419 1 r820t 16279 1 rtl2832 8020 1 snd_soc_bcm2708_i2s 5474 0 regmap_mmio 2806 1 snd_soc_bcm2708_i2s dvb_usb_rtl28xxu 14333 0 dvb_usb_v2 14860 1 dvb_usb_rtl28xxu rc_core 16313 3 dvb_usb_rtl28xxu,dvb_usb_v2 rtl2830 7378 1 dvb_usb_rtl28xxu snd_soc_core 131268 1 snd_soc_bcm2708_i2s dvb_core 92797 3 rtl2830,rtl2832,dvb_usb_v2 regmap_spi 1897 1 snd_soc_core snd_pcm 81593 2 snd_bcm2835,snd_soc_core snd_page_alloc 5156 1 snd_pcm regmap_i2c 1645 1 snd_soc_core snd_compress 8076 1 snd_soc_core snd_seq 53769 0 snd_timer 20133 2 snd_pcm,snd_seq snd_seq_device 6473 1 snd_seq leds_gpio 2059 0 led_class 3688 1 leds_gpio snd 61291 7 snd_bcm2835,snd_soc_core,snd_timer,snd_pcm,snd_seq,snd_seq_device,snd_compress i2c_bcm2708 3949 0 This is a portion of /var/log/messages . . . Dec 23 13:15:06 raspberrypi kernel: [ 2.369348] usb 1-1: new high-speed USB device number 2 using dwc_otg Dec 23 13:15:06 raspberrypi kernel: [ 2.377867] Indeed it is in host mode hprt0 = 00001101 Dec 23 13:15:06 raspberrypi kernel: [ 2.387121] devtmpfs: mounted Dec 23 13:15:06 raspberrypi kernel: [ 2.399736] Freeing unused kernel memory: 144K (c0572000 - c0596000) Dec 23 13:15:06 raspberrypi kernel: [ 2.590087] usb 1-1: New USB device found, idVendor=0424, idProduct=9512 Dec 23 13:15:06 raspberrypi kernel: [ 2.599431] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Dec 23 13:15:06 raspberrypi kernel: [ 2.609377] hub 1-1:1.0: USB hub found Dec 23 13:15:06 raspberrypi kernel: [ 2.615786] hub 1-1:1.0: 3 ports detected Dec 23 13:15:06 raspberrypi kernel: [ 2.899604] usb 1-1.1: new high-speed USB device number 3 using dwc_otg Dec 23 13:15:06 raspberrypi kernel: [ 3.009979] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00 Dec 23 13:15:06 raspberrypi kernel: [ 3.018605] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Dec 23 13:15:06 raspberrypi kernel: [ 3.047105] smsc95xx v1.0.4 Dec 23 13:15:06 raspberrypi kernel: [ 3.124437] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:30:43:fd Dec 23 13:15:06 raspberrypi kernel: [ 3.229549] usb 1-1.3: new high-speed USB device number 4 using dwc_otg Dec 23 13:15:06 raspberrypi kernel: [ 3.352535] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=2838 Dec 23 13:15:06 raspberrypi kernel: [ 3.365766] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Dec 23 13:15:06 raspberrypi kernel: [ 3.375070] usb 1-1.3: Product: RTL2838UHIDIR Dec 23 13:15:06 raspberrypi kernel: [ 3.381218] usb 1-1.3: Manufacturer: Realtek Dec 23 13:15:06 raspberrypi kernel: [ 3.391654] usb 1-1.3: SerialNumber: 00000001 Dec 23 13:15:06 raspberrypi kernel: [ 5.123693] bcm2708_i2c_init_pinmode(0,0) Dec 23 13:15:06 raspberrypi kernel: [ 5.249498] bcm2708_i2c_init_pinmode(0,1) Dec 23 13:15:06 raspberrypi kernel: [ 5.255625] bcm2708_i2c bcm2708_i2c.0: BSC0 Controller at 0x20205000 (irq 79) (baudrate 100k) Dec 23 13:15:06 raspberrypi kernel: [ 5.468627] bcm2708_i2c_init_pinmode(1,2) Dec 23 13:15:06 raspberrypi kernel: [ 5.545257] bcm2708_i2c_init_pinmode(1,3) Dec 23 13:15:06 raspberrypi kernel: [ 5.614064] bcm2708_i2c bcm2708_i2c.1: BSC1 Controller at 0x20804000 (irq 79) (baudrate 100k) Dec 23 13:15:06 raspberrypi kernel: [ 6.451707] usb 1-1.3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state Dec 23 13:15:06 raspberrypi kernel: [ 6.510309] usbcore: registered new interface driver dvb_usb_rtl28xxu Dec 23 13:15:06 raspberrypi kernel: [ 6.552127] usb 1-1.3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer Dec 23 13:15:06 raspberrypi kernel: [ 6.575184] DVB: registering new adapter (Realtek RTL2832U reference design) Dec 23 13:15:06 raspberrypi kernel: [ 6.614879] bcm2708-i2s bcm2708-i2s.0: Failed to create debugfs directory Dec 23 13:15:06 raspberrypi kernel: [ 6.639092] usb 1-1.3: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))... Dec 23 13:15:06 raspberrypi kernel: [ 6.693199] r820t 2-001a: creating new instance Dec 23 13:15:06 raspberrypi kernel: [ 6.721703] r820t 2-001a: Rafael Micro r820t successfully identified Dec 23 13:15:06 raspberrypi kernel: [ 6.744416] Registered IR keymap rc-empty Dec 23 13:15:06 raspberrypi kernel: [ 6.755520] input: Realtek RTL2832U reference design as /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/rc/rc0/input0 Dec 23 13:15:06 raspberrypi kernel: [ 6.785036] rc0: Realtek RTL2832U reference design as /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/rc/rc0 Dec 23 13:15:06 raspberrypi kernel: [ 6.808934] usb 1-1.3: dvb_usb_v2: schedule remote query interval to 400 msecs Dec 23 13:15:06 raspberrypi kernel: [ 6.840041] usb 1-1.3: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected Dec 23 13:15:06 raspberrypi kernel: [ 10.489768] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) Dec 23 13:15:06 raspberrypi kernel: [ 10.929880] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) . . . Any idea to how to solve? Many thanks!! 73 Fabio, IZ8MBW www.iz8mbw.net

A question: there is a way to start "rtp_tcp" in silent mode (without messages on the terminal)?