[patch 8/8] staging: speakup: migrate ltlk to use ttyio

[okash.khawaja at gmail.com]

This patch migrates ltlk from serial io to ttyio. Since ttyio doesn't yet
support input, this patch disables interrogating the synth for info which
it does when loaded. This is not a required functionality and intention is
to re-enable it once we have input support in ttyio.

Signed-off-by: Okash Khawaja <okash.khawaja at gmail.com>

Index: linux-4.10.1/drivers/staging/speakup/speakup_ltlk.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/speakup_ltlk.c
+++ linux-4.10.1/drivers/staging/speakup/speakup_ltlk.c
@@ -111,10 +111,10 @@
 	.startup = SYNTH_START,
 	.checkval = SYNTH_CHECK,
 	.vars = vars,
-	.io_ops = &spk_serial_io_ops,
+	.io_ops = &spk_ttyio_ops,
 	.probe = synth_probe,
-	.release = spk_serial_release,
-	.synth_immediate = spk_serial_synth_immediate,
+	.release = spk_ttyio_release,
+	.synth_immediate = spk_ttyio_synth_immediate,
 	.catch_up = spk_do_catch_up,
 	.flush = spk_synth_flush,
 	.is_alive = spk_synth_is_alive_restart,
@@ -133,6 +133,7 @@
 	},
 };
 
+#if 0
 /* interrogate the LiteTalk and print its settings */
 static void synth_interrogate(struct spk_synth *synth)
 {
@@ -154,14 +155,20 @@
 	rom_v[i] = 0;
 	pr_info("%s: ROM version: %s\n", synth->long_name, rom_v);
 }
+#endif
 
 static int synth_probe(struct spk_synth *synth)
 {
 	int failed = 0;
 
-	failed = spk_serial_synth_probe(synth);
+	failed = spk_ttyio_synth_probe(synth);
+
+//     TODO: uncomment after adding input functions to spk_ttyio
+#if 0
 	if (failed == 0)
 		synth_interrogate(synth);
+#endif
+
 	synth->alive = !failed;
 	return failed;
 }