From 33cd75b2e4563d193d0d3a9eede694b9c6aecb40 Mon Sep 17 00:00:00 2001
From: jakob <grandchild@gmx.net>
Date: Fri, 5 Jun 2020 19:05:12 +0200
Subject: [PATCH] Fix device_caps error -22 (EINVAL) on Linux 5.4+

torvalds/linux@3c13505 broke this driver, requiring the video device's
device_caps be set in advance.

Set the same device caps that are reported from vidioc_querycap().

Fixes #7.
---
 gspca.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gspca.c b/gspca.c
index e4f8c62..969fa29 100644
--- a/gspca.c
+++ b/gspca.c
@@ -1439,6 +1439,8 @@ static const struct video_device gspca_template = {
 	.fops = &dev_fops,
 	.ioctl_ops = &dev_ioctl_ops,
 	.release = video_device_release_empty, /* We use v4l2_dev.release */
+	.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING
+		| V4L2_CAP_READWRITE,
 };
 
 /*