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Fix lower cpi bound on PMW33XX (#22108)

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Glen D'souza 2023-09-24 03:53:15 +05:30 • committed by GitHub
parent c9810facce
commit 9c340077f6
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3 changed files with 3 additions and 3 deletions
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drivers/sensors/pmw3320.c
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@ -178,7 +178,7 @@ uint16_t pmw3320_get_cpi(void) {
}
void pmw3320_set_cpi(uint16_t cpi) {
uint8_t cpival = constrain((cpi / PMW3320_CPI_STEP) - 1U, 0, (PMW3320_CPI_MAX / PMW3320_CPI_STEP) - 1U);
uint8_t cpival = constrain((cpi / PMW3320_CPI_STEP), (PMW3320_CPI_MIN / PMW3320_CPI_STEP), (PMW3320_CPI_MAX / PMW3320_CPI_STEP)) - 1U;
// Fifth bit is probably a control bit.
// PMW3320 datasheet don't have any info on this, so this is a pure guess.
pmw3320_write_reg(REG_Resolution, 0x20 | cpival);