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Markus Macher markus.macher at gmail.comHi all! I hope, someone has an idea regarding my issue.. I've bought this: http://dx.com/p/rtl2832u-r820t-mini-dvb-t-dab-fm-usb-digital-tv-dongle-black-170541 The chips inside are RTL2832U and R820T. With latest rtl-sdr from git as well as keenerd's branch , I get (as root): Found 1 device(s): 0: ezcap USB 2.0 DVB-T/DAB/FM dongle Using device 0: ezcap USB 2.0 DVB-T/DAB/FM dongle No supported tuner found Enabled direct sampling mode, input 1 Current configuration: __________________________________________ Vendor ID: 0x0bda Product ID: 0x2838 Manufacturer: Realtek Product: RTL2838UHIDIR Serial number: 00000001 Serial number enabled: yes IR endpoint enabled: yes Remote wakeup enabled: no Well, rtl_fm is making noises, but in direct sampling mode, I think I have no chance to listen to the radio at all. in librtlsdr.c, after reg = rtlsdr_i2c_read_reg(dev, R820T_I2C_ADDR, R82XX_CHECK_ADDR); if (reg == R82XX_CHECK_VAL) { fprintf(stderr, "Found Rafael Micro R820T tuner (reg=%08X, should be %08X)\n",reg,R82XX_CHECK_VAL); dev->tuner_type = RTLSDR_TUNER_R820T; goto found; } reg is zero instead of R82XX_CHECK_VAL I tried to force it to be a R820T, but "pll not locked" or so.. It's standard debian wheezy with /dev/bus/usb and without /proc/bus/usb. usb messages seem to work: 11606 ioctl(6, USBDEVFS_SUBMITURB or USBDEVFS_SUBMITURB32, 0x2133490) = 0 11606 ioctl(6, USBDEVFS_REAPURBNDELAY or USBDEVFS_REAPURBNDELAY32, 0x7fffed8a4dd8) = 0 Many thx, Markus -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20131207/167752fb/attachment.htm>