From nobody Sun Aug 9 17:01:42 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hJ41329TSz6nm1j for ; Sun, 09 Aug 2026 17:01:43 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hJ4125Dhnz3lh0 for ; Sun, 09 Aug 2026 17:01:42 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786294902; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=sMacaBuyTc3gRNKggAYSsaN+WlvY4FTkmXx8q+P78RQ=; b=SvdrDjau2t60rm1F2VGWuiYGqFkpkFyjvw/dJzT+sTEXfjEVqIs+3Jn2ngufUCh61soZ2t RM7F2K2OQNsDFDbA/UmxJ5TjQMDRHBEGLf0yVXnDq2KrfnLy498HrRi8kCZZAmxQfARm03 HBnCX7Q+q7jmi6+0g2FT3c+B4KPq08K81kcynHokQLG3cP7BQikwiIil0THJhMRSeZ978i 3skR/wTua9w+d4NzcPc4OOE99CvrXSoyG/BQ+jFij4l3Rxi0K46prSThEdaVJkNweb0nEK SOl6v3Vxf5GC7PfjGx1ELdRQd8zfSR1ZjaTqtpz68gle8yLiCb/8GPkgQ4eFyg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1786294902; a=rsa-sha256; cv=none; b=LuRDhfZSdf0ahEQgbFwJpn7bmu3BHCd0Amt+9zVo+PFAkkb0/1Sb8Mwo5ZF+nBzANmZ5DB x77AmIZqoditJ1lusBRtLKUjVM3TDtcfJkFnnRJ/JWtp6VCWM7zwzp905L2GwAfBsmByI5 /VOgrKNG51iHKM9BZn5K1f28Dlhg/U5NaDnyGKmbdI/ekk3unwD82QujmU1RZak+LUcGza lbQb+vbzT3ml0vnp61wymnSTXW9xH6pobR51ILw3GUmButGVdJ2Zs+tM2cOyGK/roLwu4L KPG5Mkfc2s+dFQPk6NN10OUxmXmTuy7JcypngDX18jBomA/kDfE10vADojNKLQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1786294902; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=sMacaBuyTc3gRNKggAYSsaN+WlvY4FTkmXx8q+P78RQ=; b=q5Xalhk5dNa8JGm7Q5RgPY12pq6C4b5ojbOp9J5vYn/SL7T1vgfHWQ0friVwHizAis0TlB AO36vL/BVgay9x5nJsg1axLTDX8iH7Q2jAMs1Ne6MSzhm6sfFvBWJUTUET7B+25K/aFGwr +Fs6EA2YleccMEy0ODPvK318c/DkQpDHvU7pRjh+5KQOYLdxGpJv+l9i2fLw6CKzEaX7UI m4hVHJn4EVNok3NRPL1Nu8Re2cI1WtAkd1jCLNZjkqZU4oE071fAlct2v/ZEYrVOfQQyUL vYar1H4eRwDz6fJE4x+ovAkK0nle90soYn+5pABpNvmhBtiyD0fRkOjecG3E2Q== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hJ4123xrnzY1l for ; Sun, 09 Aug 2026 17:01:42 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3b404 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sun, 09 Aug 2026 17:01:42 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: Abdelkader Boudih From: Adrian Chadd Subject: git: ad9cc3f1da14 - main - uvideo: limit isochronous transfers to 32 frames List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: adrian X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: ad9cc3f1da14da168e676aeadecd77dfaff6fc06 Auto-Submitted: auto-generated Date: Sun, 09 Aug 2026 17:01:42 +0000 Message-Id: <6a78b276.3b404.56e09d56@gitrepo.freebsd.org> The branch main has been updated by adrian: URL: https://cgit.FreeBSD.org/src/commit/?id=ad9cc3f1da14da168e676aeadecd77dfaff6fc06 commit ad9cc3f1da14da168e676aeadecd77dfaff6fc06 Author: Abdelkader Boudih AuthorDate: 2026-08-09 16:58:55 +0000 Commit: Adrian Chadd CommitDate: 2026-08-09 16:59:01 +0000 uvideo: limit isochronous transfers to 32 frames Raising UVIDEO_NFRAMES_MAX from 40 to 128 in 3b6f833c95eb improved throughput on xhci but made every camera on an ehci bus fail to stream. Integrated webcams became unusable. Measured on a MacBookPro9,2 with two ehci(4) FaceTime HD cameras and an xhci(4) Logitech C920: 128 32 ehci, 12 captures 0 ok 12 ok xhci 1920x1080 5 fps 5 fps xhci 1280x720 10 fps 10 fps Fixes: 3b6f833c95eb Reviewed by: bapt Differential Revision: https://reviews.freebsd.org/D58501 --- sys/dev/usb/video/uvideo.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/dev/usb/video/uvideo.h b/sys/dev/usb/video/uvideo.h index fbcc0b2ec930..512cf7ac8316 100644 --- a/sys/dev/usb/video/uvideo.h +++ b/sys/dev/usb/video/uvideo.h @@ -640,7 +640,7 @@ struct usb_video_format_desc { /* * Driver specific private definitions. */ -#define UVIDEO_NFRAMES_MAX 128 +#define UVIDEO_NFRAMES_MAX 32 #define UVIDEO_IXFERS 5 struct uvideo_vs_iface {