From fe26e45e64dc0c356ddba3470343244c7544b3ac Mon Sep 17 00:00:00 2001 From: YixingShen Date: Sat, 7 Mar 2026 02:03:50 +0800 Subject: fixed _open_vc_itf parsing Standard Interface Descriptor (Video Control) Video Control Header Descriptor Video Control Camera Terminal Descriptor Video Control Output Terminal Descriptor Standard Endpoint Descriptor Class-Specific VC Interrupt Endpoint Descriptor Video Control Header Descriptor's wTotalLength = Header Descriptor + Camera Terminal Descriptor + Output Terminal Descriptor _end_of_control_descriptor is Output Terminal Descriptor End the "end" should +7 for _find_desc searchig Standard Endpoint Descriptor --- src/class/video/video_device.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'src/class') diff --git a/src/class/video/video_device.c b/src/class/video/video_device.c index b2375def9..24f31c6ad 100644 --- a/src/class/video/video_device.c +++ b/src/class/video/video_device.c @@ -771,7 +771,10 @@ static bool _open_vc_itf(uint8_t rhport, videod_interface_t *self, uint_fast8_t TU_ASSERT(vc->ctl.bInCollection <= CFG_TUD_VIDEO_STREAMING); /* Update to point the end of the video control interface descriptor. */ - end = _end_of_control_descriptor(cur); + end = _end_of_control_descriptor(cur) + 7; + //tusb_desc_video_control_header wTotalLength = + // tusb_desc_video_control_header + tusb_desc_video_control_camera_terminal_t + tusb_desc_video_control_output_terminal_t + // has no status Interrupt EP desc, then "end" should +7 for _find_desc searchig EP desc /* Advance to the next descriptor after the class-specific VC interface header descriptor. */ cur += vc->std.bLength + vc->ctl.bLength; -- cgit v1.3.1