esp32: Update machine_i2c.c.

Vincent1-python · web-flow · commit 9d0273273d5d · 2025-08-25T17:15:55.000+08:00
Signed-off-by: Vincent1-python &lt;pywei201209@163.com&gt;
diff --git a/ports/esp32/machine_i2c.c b/ports/esp32/machine_i2c.c
@@ -95,7 +95,7 @@ static int machine_i2c_transfer_single(mp_obj_base_t *self_in, uint16_t addr, si
         // 3. Transfer data
         if (flags & MP_MACHINE_I2C_FLAG_READ) {
             err = i2c_master_receive(dev_handle, buf, len, self->timeout_us / 1000);
-        } else if (len > 0) {
+        } else {
             err = i2c_master_transmit(dev_handle, buf, len, self->timeout_us / 1000);
         }
         // 4. Destroy the temporary handle

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ static int machine_i2c_transfer_single(mp_obj_base_t *self_in, uint16_t addr, si`
`95`	`95`	`// 3. Transfer data`
`96`	`96`	`if (flags & MP_MACHINE_I2C_FLAG_READ) {`
`97`	`97`	`err = i2c_master_receive(dev_handle, buf, len, self->timeout_us / 1000);`
`98`		`- } else if (len > 0) {`
	`98`	`+ } else {`
`99`	`99`	`err = i2c_master_transmit(dev_handle, buf, len, self->timeout_us / 1000);`
`100`	`100`	`}`
`101`	`101`	`// 4. Destroy the temporary handle`