lib: fix direction bit in GPIO code
source: http://lea.hamradio.si/~s57uuu/mischam/rtlsdr/ports.html * Removed unnecessary comment of old code. Signed-off-by: Fabian P. Schmidt <kerel-fs@gmx.de> Signed-off-by: Steve Markgraf <steve@steve-m.de>
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@ -570,7 +570,7 @@ void rtlsdr_set_gpio_output(rtlsdr_dev_t *dev, uint8_t gpio)
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gpio = 1 << gpio;
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r = rtlsdr_read_reg(dev, SYSB, GPD, 1);
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rtlsdr_write_reg(dev, SYSB, GPO, r & ~gpio, 1);
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rtlsdr_write_reg(dev, SYSB, GPD, r & ~gpio, 1);
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r = rtlsdr_read_reg(dev, SYSB, GPOE, 1);
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rtlsdr_write_reg(dev, SYSB, GPOE, r | gpio, 1);
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}
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