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Return false if we already have the lock

This commit is contained in:
Scott Shawcroft 2020-07-01 14:35:25 -07:00
parent c3d1256d76
commit 367d3800fc
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1 changed files with 3 additions and 0 deletions
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3
ports/esp32s2/common-hal/busio/I2C.c
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@ -163,6 +163,9 @@ bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
}
bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
if (self->has_lock) {
return false;
}
self->has_lock = xSemaphoreTake(&self->semaphore, 0) == pdTRUE;
return self->has_lock;
}