Reflect termios API changes.

c/src/lib/libcpu/sh/sh7045/include/sci_termios.h

@@ -27,16 +27,16 @@ void sh_sci_initialize_interrupts(int minor);
 
 void sh_sci_init(int minor);
 
-int sh_sci_write_support_int(
+ssize_t sh_sci_write_support_int(
     int         minor,
     const char *buf,
-    int         len
+    size_t      len
 );
 
-int sh_sci_write_support_polled(
+ssize_t sh_sci_write_support_polled(
   int         minor,
   const char *buf,
-  int         len
+  size_t      len
 );
 
 void sh_sci_write_polled(

c/src/lib/libcpu/sh/sh7045/sci/sci.c

@@ -541,9 +541,9 @@ static int _sh_sci_poll_read(int minor)
 /*
  * Termios polled write
  */
-static int _sh_sci_poll_write(int minor, const uint8_t *buf, int len)
+static ssize_t _sh_sci_poll_write(int minor, const char *buf, size_t len)
 {
-    int count;
+    size_t count;
 
     for (count = 0; count < len; count++)
         outbyte( minor, buf[count] );

c/src/lib/libcpu/sh/sh7045/sci/sci_termios.c

@@ -355,10 +355,10 @@ int sh_sci_last_close(
 /*
  * Interrupt aware write routine
  */
-int sh_sci_write_support_int(
+ssize_t sh_sci_write_support_int(
   int            minor,
   const char    *buf,
-  int            len
+  size_t         len
 )
 {
     if (!len)
@@ -379,10 +379,10 @@ int sh_sci_write_support_int(
 /*
  * Polled write method
  */
-int sh_sci_write_support_polled(
+ssize_t sh_sci_write_support_polled(
   int            minor,
   const char    *buf,
-  int            len
+  size_t         len
 )
 {
     int count = 0;