Make mp_obj_str_get_data return char* instead of byte*.

Can't decide which is better for string type, char or byte pointer.
Changing to char removes a few casts.  Really need to do proper unicode.

3 files changed, 5 insertions, 5 deletions

diff --git a/stm/file.c b/stm/file.c
index 84f7251fe..36658e7a6 100644
--- a/stm/file.c
+++ b/stm/file.c
@@ -29,7 +29,7 @@ mp_obj_t file_obj_read(mp_obj_t self_in, mp_obj_t arg) {
 mp_obj_t file_obj_write(mp_obj_t self_in, mp_obj_t arg) {
     pyb_file_obj_t *self = self_in;
     uint l;
-    const byte *s = mp_obj_str_get_data(arg, &l);
+    const char *s = mp_obj_str_get_data(arg, &l);
     UINT n_out;
     FRESULT res = f_write(&self->fp, s, l, &n_out);
     if (res != FR_OK) {
diff --git a/stm/lcd.c b/stm/lcd.c
index 01ef1c154..48d5a81bb 100644
--- a/stm/lcd.c
+++ b/stm/lcd.c
@@ -202,8 +202,8 @@ mp_obj_t lcd_pix_show(void) {
 
 mp_obj_t lcd_print(mp_obj_t text) {
     uint len;
-    const byte *data = mp_obj_str_get_data(text, &len);
-    lcd_print_strn((const char*)data, len);
+    const char *data = mp_obj_str_get_data(text, &len);
+    lcd_print_strn(data, len);
     return mp_const_none;
 }
 
diff --git a/stm/usart.c b/stm/usart.c
index d9de599c4..306284d5a 100644
--- a/stm/usart.c
+++ b/stm/usart.c
@@ -159,7 +159,7 @@ void usart_tx_str(pyb_usart_t usart_id, const char *str) {
     }
 }
 
-void usart_tx_bytes(pyb_usart_t usart_id, const byte *data, uint len) {
+void usart_tx_bytes(pyb_usart_t usart_id, const char *data, uint len) {
     for (; len > 0; data++, len--) {
         usart_tx_char(usart_id, *data);
     }
@@ -216,7 +216,7 @@ static mp_obj_t usart_obj_tx_str(mp_obj_t self_in, mp_obj_t s) {
     if (self->is_enabled) {
         if (MP_OBJ_IS_STR(s)) {
             uint len;
-            const byte *data = mp_obj_str_get_data(s, &len);
+            const char *data = mp_obj_str_get_data(s, &len);
             usart_tx_bytes(self->usart_id, data, len);
         }
     }