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@@ -111,8 +111,14 @@ static const int mma8452_samp_freq[8][2] = {
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{6, 250000}, {1, 560000}
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};
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+/*
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+ * Hardware has fullscale of -2G, -4G, -8G corresponding to raw value -2048
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+ * The userspace interface uses m/s^2 and we declare micro units
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+ * So scale factor is given by:
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+ * g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665
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+ */
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static const int mma8452_scales[3][2] = {
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- {0, 977}, {0, 1953}, {0, 3906}
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+ {0, 9577}, {0, 19154}, {0, 38307}
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};
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static ssize_t mma8452_show_samp_freq_avail(struct device *dev,
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