From 609a0532a4d713819092a9311ffe89faa6bac617 Mon Sep 17 00:00:00 2001 From: Bhupesh Sharma Date: Fri, 1 Mar 2013 20:46:28 +0100 Subject: [PATCH] usb: gadget: uvc: Add fix for UVC compliance test suite assertion 6.3.90 failure As per UVC compliance test specification's assertion number 6.3.90 related to 'Standard VS Isochronous Video Data Endpoint Descriptor Assertions', the bits D3..2 of 'bmAttributes' field of Standard VS Isochronous Video Data Endpoint Descriptor should be 01 (binary) to indicate that the synchronization type is ASYNCHRONOUS. This mandatory requirement has been captured in section 3.10.1.1 of the UVC Video Class Specification version 1.1 This patch adds a fix for the same. Signed-off-by: Bhupesh Sharma Signed-off-by: Laurent Pinchart Tested-by: Bhupesh Sharma Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_uvc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c index 87b5306d1255..76ec10fa5f2b 100644 --- a/drivers/usb/gadget/f_uvc.c +++ b/drivers/usb/gadget/f_uvc.c @@ -153,7 +153,8 @@ static struct usb_endpoint_descriptor uvc_fs_streaming_ep __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, /* The wMaxPacketSize and bInterval values will be initialized from * module parameters. */ @@ -165,7 +166,8 @@ static struct usb_endpoint_descriptor uvc_hs_streaming_ep __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, /* The wMaxPacketSize and bInterval values will be initialized from * module parameters. */ @@ -178,7 +180,8 @@ static struct usb_endpoint_descriptor uvc_ss_streaming_ep __initdata = { .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, /* The wMaxPacketSize and bInterval values will be initialized from * module parameters. */ -- 2.34.1