diff mbox series

[16/17] ALSA: usb-audio: scarlett2: Update get_config to do endian conversion

Message ID cbc8b6eedd859dd27086ab4126d724a86dd50bcb.1624379707.git.g@b4.vu
State Accepted
Commit ac34df733d2dfe3b553897a1e9e1a44414f09834
Headers show
Series Add Scarlett Gen 3 support | expand

Commit Message

Geoffrey D. Bennett June 22, 2021, 5:04 p.m. UTC 
For configuration items with a size of 16, scarlett2_usb_get_config()
was filling *buf with little-endian data. Update it to convert to CPU
endian. This function is not currently used so affects nothing yet;
will be used by the upcoming talkback feature.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
---
 sound/usb/mixer_scarlett_gen2.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index ffa2ee8d034c..f26ab6c39859 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -1170,7 +1170,13 @@  static int scarlett2_usb_get_config(
 	/* For byte-sized parameters, retrieve directly into buf */
 	if (config_item->size >= 8) {
 		size = config_item->size / 8 * count;
-		return scarlett2_usb_get(mixer, config_item->offset, buf, size);
+		err = scarlett2_usb_get(mixer, config_item->offset, buf, size);
+		if (err < 0)
+			return err;
+		if (size == 2)
+			for (i = 0; i < count; i++, (u16 *)buf++)
+				*(u16 *)buf = le16_to_cpu(*(__le16 *)buf);
+		return 0;
 	}
 
 	/* For bit-sized parameters, retrieve into value */