diff --git a/ni845x_spi.c b/ni845x_spi.c
index 73b236e..2834798 100644
--- a/ni845x_spi.c
+++ b/ni845x_spi.c
@@ -130,7 +130,7 @@
 
 /**
  * @param serial a null terminated string containing the serial number of the specific device or NULL
- * @return the 0 on successful completition, negative error code on failure
+ * @return the 0 on successful completion, negative error code on failure
  */
 static int ni845x_spi_open(const char *serial, uInt32 *return_handle)
 {
@@ -145,7 +145,7 @@
 
 	tmp = ni845xFindDevice(resource_name, &device_find_handle, &found_devices_count);
 	if (tmp != 0) {
-		// supress warning if no device found
+		// suppress warning if no device found
 		if (tmp != NI845x_FIND_DEVICE_NO_DEVICE_FOUND)
 			ni845x_report_error("ni845xFindDevice", tmp);
 		return -1;
@@ -220,7 +220,7 @@
  * @param requested_io_voltage_mV the desired IO voltage in mVolts
  * @param set_io_voltage_mV the IO voltage which was set in mVolts
  * @param coerce_mode if set to USE_LOWER the closest supported IO voltage which is lower or equal to
- * the requested_io_voltage_mV will be selected. Otherwise the next closest supported voltage will be choosen
+ * the requested_io_voltage_mV will be selected. Otherwise the next closest supported voltage will be chosen
  * which is higher or equal to the requested_io_voltage_mV.
  * @return 0 on success, negative on error, positive on warning
  */
@@ -346,7 +346,7 @@
 
 	tmp = ni845xFindDevice(resource_handle, &device_find_handle, &found_devices_count);
 	if (tmp != 0) {
-		// supress warning if no device found
+		// suppress warning if no device found
 		if (tmp != NI845x_FIND_DEVICE_NO_DEVICE_FOUND)
 			ni845x_report_error("ni845xFindDevice", tmp);
 		return;
@@ -620,7 +620,7 @@
 
 	if (read_cnt != 0 && read_arr != NULL) {
 		if ((read_cnt + write_cnt) != read_size) {
-			msg_perr("%s: expected and returned read count mismatch: %u expected, %ld recieved\n",
+			msg_perr("%s: expected and returned read count mismatch: %u expected, %ld received\n",
 					 __func__, read_cnt, read_size);
 			free(transfer_buffer);
 			return -1;