diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index db2d4980cb35..e04a7cb96dc0 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -173,7 +173,7 @@ static struct uac2_input_terminal_descriptor io_in_it_desc = {
 
 	.bDescriptorSubtype = UAC_INPUT_TERMINAL,
 	/* .bTerminalID = DYNAMIC */
-	.wTerminalType = cpu_to_le16(UAC_INPUT_TERMINAL_UNDEFINED),
+	.wTerminalType = cpu_to_le16(UAC_INPUT_TERMINAL_MICROPHONE),
 	.bAssocTerminal = 0,
 	/* .bCSourceID = DYNAMIC */
 	.iChannelNames = 0,
@@ -201,7 +201,7 @@ static struct uac2_output_terminal_descriptor io_out_ot_desc = {
 
 	.bDescriptorSubtype = UAC_OUTPUT_TERMINAL,
 	/* .bTerminalID = DYNAMIC */
-	.wTerminalType = cpu_to_le16(UAC_OUTPUT_TERMINAL_UNDEFINED),
+	.wTerminalType = cpu_to_le16(UAC_OUTPUT_TERMINAL_SPEAKER),
 	.bAssocTerminal = 0,
 	/* .bSourceID = DYNAMIC */
 	/* .bCSourceID = DYNAMIC */
@@ -212,10 +212,10 @@ static struct uac2_ac_header_descriptor ac_hdr_desc = {
 	.bLength = sizeof ac_hdr_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
-	.bDescriptorSubtype = UAC_MS_HEADER,
+	.bDescriptorSubtype = UAC_HEADER,
 	.bcdADC = cpu_to_le16(0x200),
 	.bCategory = UAC2_FUNCTION_IO_BOX,
-	.wTotalLength = cpu_to_le16(sizeof in_clk_src_desc
+	.wTotalLength = cpu_to_le16(sizeof ac_hdr_desc + sizeof in_clk_src_desc
 			+ sizeof out_clk_src_desc + sizeof usb_out_it_desc
 			+ sizeof io_in_it_desc + sizeof usb_in_ot_desc
 			+ sizeof io_out_ot_desc),
@@ -273,7 +273,7 @@ static struct usb_endpoint_descriptor fs_epout_desc = {
 	.bDescriptorType = USB_DT_ENDPOINT,
 
 	.bEndpointAddress = USB_DIR_OUT,
-	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ADAPTIVE,
 	.wMaxPacketSize = cpu_to_le16(1023),
 	.bInterval = 1,
 };
@@ -282,7 +282,7 @@ static struct usb_endpoint_descriptor hs_epout_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
-	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ADAPTIVE,
 	.wMaxPacketSize = cpu_to_le16(1024),
 	.bInterval = 4,
 };
@@ -350,7 +350,7 @@ static struct usb_endpoint_descriptor fs_epin_desc = {
 	.bDescriptorType = USB_DT_ENDPOINT,
 
 	.bEndpointAddress = USB_DIR_IN,
-	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_SYNC,
 	.wMaxPacketSize = cpu_to_le16(1023),
 	.bInterval = 1,
 };
@@ -359,7 +359,7 @@ static struct usb_endpoint_descriptor hs_epin_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
-	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+	.bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_SYNC,
 	.wMaxPacketSize = cpu_to_le16(1024),
 	.bInterval = 4,
 };
@@ -501,7 +501,7 @@ static void setup_descriptor(struct f_uac2_opts *opts)
 	as_in_hdr_desc.bTerminalLink = usb_in_ot_desc.bTerminalID;
 
 	iad_desc.bInterfaceCount = 1;
-	ac_hdr_desc.wTotalLength = 0;
+	ac_hdr_desc.wTotalLength = sizeof ac_hdr_desc;
 
 	if (EPIN_EN(opts)) {
 		u16 len = le16_to_cpu(ac_hdr_desc.wTotalLength);