Hello,
a few days ago I tried to install rtl-sdr on my raspberry pi. I'm using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build the software following the guide in the wiki. I used two additional switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
After installing the software I created a blacklist in cd /etc/modprobe.d:
blacklist dvb_usb_rtl28xxu blacklist rtl2832 blacklist rtl2830 blacklist rtl2838
After rebooting the device I tried to test rtl-sdr with rtl_test -t and got this result:
Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM usb_claim_interface error -6 Failed to open rtlsdr device #0.
I don't know how to fix this error. I tried many suggestions found via google but it doesn't work.
Can someone help me to fix this?
Thanks for your help!!
Joachim
Hi Joachim,
"I tried many [...] but it doesn't work": so, what exactly you've tried would be kind of relevant :)
I'll go out on a limb here based on statistics and say: you might have missed what http://osmocom.org/projects/sdr/wiki/rtl-sdr#rtlsdr-library-amp-capture-tool says:
sudo make install-udev-rules
Best regards, Marcus
On 05.04.2017 07:30, pantos@pantokratoren.de wrote:
Hello,
a few days ago I tried to install rtl-sdr on my raspberry pi. I'm using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build the software following the guide in the wiki. I used two additional switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
After installing the software I created a blacklist in cd /etc/modprobe.d:
blacklist dvb_usb_rtl28xxu blacklist rtl2832 blacklist rtl2830 blacklist rtl2838
After rebooting the device I tried to test rtl-sdr with rtl_test -t and got this result:
Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM usb_claim_interface error -6 Failed to open rtlsdr device #0.
I don't know how to fix this error. I tried many suggestions found via google but it doesn't work.
Can someone help me to fix this?
Thanks for your help!!
Joachim
Hi Marcus,
thanks for your reply. To install the udev-rules I used
sudo cp ./rtl-sdr/rtl-sdr.rules /etc/udev/rules.d/
The suggested way
sudo make install-udev-rules
doesn't worked for me (Error: make: *** No rule to make target 'install-udev-rules'. Schluss.).
Or is this the wrong way?
Sorry for this stupid question but I'm a little bit lost...
Best regards
Joachim
Am 05.04.2017 um 14:35 schrieb Marcus Müller:
Hi Joachim,
"I tried many [...] but it doesn't work": so, what exactly you've tried would be kind of relevant :)
I'll go out on a limb here based on statistics and say: you might have missed what http://osmocom.org/projects/sdr/wiki/rtl-sdr#rtlsdr-library-amp-capture-tool says:
sudo make install-udev-rules
Best regards, Marcus
On 05.04.2017 07:30, pantos@pantokratoren.de wrote:
Hello,
a few days ago I tried to install rtl-sdr on my raspberry pi. I'm using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build the software following the guide in the wiki. I used two additional switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
After installing the software I created a blacklist in cd /etc/modprobe.d:
blacklist dvb_usb_rtl28xxu blacklist rtl2832 blacklist rtl2830 blacklist rtl2838
After rebooting the device I tried to test rtl-sdr with rtl_test -t and got this result:
Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM usb_claim_interface error -6 Failed to open rtlsdr device #0.
I don't know how to fix this error. I tried many suggestions found via google but it doesn't work.
Can someone help me to fix this?
Thanks for your help!!
Joachim
Hi Joachim,
absolutely no stupid questions involved!
So, ok, assuming you rebooted or ran "sudo udevadm control --reload" and re-plugged the device, we have to rule out:
* the dvb-t kernel module still being loaded: plug in stick, run "lsmod|grep rtl", look for suspicious lines * the stick not having standard USB ids: plug in stick. run "lsusb". find line describing stick VID:PID. do these match any line in rtl-sdr.rules? * some other kernel shenanigans. Run "dmesg -w" to watch dmesg, plug in stick, see whether suspicious stuff happens to the kernel :)
Best regards,
Marcus
On 05.04.2017 22:11, pantos@pantokratoren.de wrote:
Hi Marcus,
thanks for your reply. To install the udev-rules I used
sudo cp ./rtl-sdr/rtl-sdr.rules /etc/udev/rules.d/
The suggested way
sudo make install-udev-rules
doesn't worked for me (Error: make: *** No rule to make target 'install-udev-rules'. Schluss.).
Or is this the wrong way?
Sorry for this stupid question but I'm a little bit lost...
Best regards
Joachim
Am 05.04.2017 um 14:35 schrieb Marcus Müller:
Hi Joachim,
"I tried many [...] but it doesn't work": so, what exactly you've tried would be kind of relevant :)
I'll go out on a limb here based on statistics and say: you might have missed what http://osmocom.org/projects/sdr/wiki/rtl-sdr#rtlsdr-library-amp-capture-tool says:
sudo make install-udev-rules
Best regards, Marcus
On 05.04.2017 07:30, pantos@pantokratoren.de wrote:
Hello,
a few days ago I tried to install rtl-sdr on my raspberry pi. I'm using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build the software following the guide in the wiki. I used two additional switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
After installing the software I created a blacklist in cd /etc/modprobe.d:
blacklist dvb_usb_rtl28xxu blacklist rtl2832 blacklist rtl2830 blacklist rtl2838
After rebooting the device I tried to test rtl-sdr with rtl_test -t and got this result:
Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM usb_claim_interface error -6 Failed to open rtlsdr device #0.
I don't know how to fix this error. I tried many suggestions found via google but it doesn't work.
Can someone help me to fix this?
Thanks for your help!!
Joachim
Hi Marcus,
thanks for your extensive help!! I tried out your suggestions.
I rebooted the raspberry pi many times ;-)
- the dvb-t kernel module still being loaded: plug in stick, run "lsmod|grep rtl", look for suspicious lines
With "lsmod|grep rtl" I get no results.
- the stick not having standard USB ids: plug in stick. run "lsusb". find line describing stick VID:PID. do these match any line in rtl-sdr.rules?
The result is: Bus 001 Device 005: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T I think this match my rtl-sdr.rules line with "blacklist dvb_usb_rtl28xxu" and "blacklist rtl2838"?
- some other kernel shenanigans. Run "dmesg -w" to watch dmesg, plug in stick, see whether suspicious stuff happens to the kernel :)
[253111.992530] usb 1-1.4: new high-speed USB device number 5 using dwc_otg [253112.104864] usb 1-1.4: New USB device found, idVendor=0bda, idProduct=2838 [253112.104901] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [253112.104919] usb 1-1.4: Product: RTL2838UHIDIR [253112.104934] usb 1-1.4: Manufacturer: Realtek [253112.104949] usb 1-1.4: SerialNumber: 00000001
Seems to be normal? Do you see anything suspicious?
Best regards,
Joachim
Am 05.04.2017 um 23:55 schrieb Marcus Müller:
Hi Joachim,
absolutely no stupid questions involved!
So, ok, assuming you rebooted or ran "sudo udevadm control --reload" and re-plugged the device, we have to rule out:
- the dvb-t kernel module still being loaded: plug in stick, run
"lsmod|grep rtl", look for suspicious lines
- the stick not having standard USB ids: plug in stick. run "lsusb".
find line describing stick VID:PID. do these match any line in rtl-sdr.rules?
- some other kernel shenanigans. Run "dmesg -w" to watch dmesg, plug in
stick, see whether suspicious stuff happens to the kernel :)
Best regards,
Marcus
On 05.04.2017 22:11, pantos@pantokratoren.de wrote:
Hi Marcus,
thanks for your reply. To install the udev-rules I used
sudo cp ./rtl-sdr/rtl-sdr.rules /etc/udev/rules.d/
The suggested way
sudo make install-udev-rules
doesn't worked for me (Error: make: *** No rule to make target 'install-udev-rules'. Schluss.).
Or is this the wrong way?
Sorry for this stupid question but I'm a little bit lost...
Best regards
Joachim
Am 05.04.2017 um 14:35 schrieb Marcus Müller:
Hi Joachim,
"I tried many [...] but it doesn't work": so, what exactly you've tried would be kind of relevant :)
I'll go out on a limb here based on statistics and say: you might have missed what http://osmocom.org/projects/sdr/wiki/rtl-sdr#rtlsdr-library-amp-capture-tool says:
sudo make install-udev-rules
Best regards, Marcus
On 05.04.2017 07:30, pantos@pantokratoren.de wrote:
Hello,
a few days ago I tried to install rtl-sdr on my raspberry pi. I'm using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build the software following the guide in the wiki. I used two additional switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
After installing the software I created a blacklist in cd /etc/modprobe.d:
blacklist dvb_usb_rtl28xxu blacklist rtl2832 blacklist rtl2830 blacklist rtl2838
After rebooting the device I tried to test rtl-sdr with rtl_test -t and got this result:
Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM usb_claim_interface error -6 Failed to open rtlsdr device #0.
I don't know how to fix this error. I tried many suggestions found via google but it doesn't work.
Can someone help me to fix this?
Thanks for your help!!
Joachim
-
Marcus Müller -
pantos＠pantokratoren.de