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properly poweroff PLL/ADCs/tuner on exit 

Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Steve Markgraf 2012-04-03 17:37:55 +02:00
parent ca70087209
commit 2f6183cd6c
1 changed files with 13 additions and 0 deletions
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13
src/rtl-sdr.c
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@ -400,6 +400,17 @@ void rtlsdr_init_baseband(rtlsdr_dev_t *dev)
rtlsdr_demod_write_reg(dev, 1, 0xb1, 0x1b, 1);
}
void rtlsdr_deinit_baseband(rtlsdr_dev_t *dev)
{
/* deinitialize tuner */
rtlsdr_set_i2c_repeater(dev, 1);
dev->tuner->exit(dev);
rtlsdr_set_i2c_repeater(dev, 0);
/* poweroff demodulator and ADCs */
rtlsdr_write_reg(dev, SYSB, DEMOD_CTL, 0x20, 1);
}
int rtlsdr_set_center_freq(rtlsdr_dev_t *dev, uint32_t freq)
{
int r;
@ -717,6 +728,8 @@ int rtlsdr_close(rtlsdr_dev_t *dev)
if (!dev)
return -1;
rtlsdr_deinit_baseband(dev);
libusb_release_interface(dev->devh, 0);
libusb_close(dev->devh);