[PATCH 30/31] ALSA: usb-audio: scarlett2: Update get_config to do endian conversion
Geoffrey D. Bennett
g at b4.vu
Mon Jun 21 20:10:13 CEST 2021
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 at b4.vu>
---
sound/usb/mixer_scarlett_gen2.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index dc5fd045b2dc..8fd850f6aa6e 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 */
--
2.31.1
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