speakup_dummy: log about characters received by the dummy driver

The dummy speakup driver is used to check that speakup is working properly, without the need for actually owning the hardware. Some drivers require receiving characters, so we need a way to check that this is working properly. Signed-off-by: Samuel Thibault <[email protected]> Link: https://lore.kernel.org/r/20201101183913.yg35cbqpn2ba6cew@function Signed-off-by: Greg Kroah-Hartman <[email protected]>
niw · Nov 9, 2020 · a79db45 · a79db45
1 parent 552c08a
commit a79db45
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/drivers/accessibility/speakup/speakup_dummy.c b/drivers/accessibility/speakup/speakup_dummy.c
@@ -80,6 +80,11 @@ static struct attribute *synth_attrs[] = {
 	NULL,	/* need to NULL terminate the list of attributes */
 };
 
+static void read_buff_add(u_char c)
+{
+	pr_info("speakup_dummy: got character %02x\n", c);
+}
+
 static struct spk_synth synth_dummy = {
 	.name = "dummy",
 	.version = DRV_VERSION,
@@ -103,7 +108,7 @@ static struct spk_synth synth_dummy = {
 	.flush = spk_synth_flush,
 	.is_alive = spk_synth_is_alive_restart,
 	.synth_adjust = NULL,
-	.read_buff_add = NULL,
+	.read_buff_add = read_buff_add,
 	.get_index = NULL,
 	.indexing = {
 		.command = NULL,