From: sashiko-bot@kernel.org
To: "Nicolai Buchwitz" <nb@tipi-net.de>
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH 2/4] usb: usbtmc: handle undersized high-speed bulk OUT packets
Date: Tue, 20 Oct 2026 14:39:06 +0000 [thread overview]
Message-ID: <sashiko-outbox-179171@kernel.org> (raw)
In-Reply-To: <20261020-fix-usbtmc-short-packets-v1-2-903f4d029193@tipi-net.de>
> The Siglent SDM4065A-SC hangs its OUT endpoint when xHCI sends a packet
> larger than the 64 bytes it advertises. Every transfer after that times
> out until a USB reset:
>
> usbtmc 1-1.3:1.0: Unable to send data, error -110
> usbtmc 1-1.3:1.0: send_request_dev_dep_msg_in returned -110
>
> Limit usbtmc_write() to URBs of the advertised packet size on this
> device and send them one at a time. Some devices with this bug also
> stall on back-to-back OUT packets.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261020-fix-usbtmc-short-packets-v1-0-903f4d029193@tipi-net.de?part=2
next prev parent reply other threads:[~2026-10-20 14:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 14:33 [PATCH 0/4] usb: usbtmc: fix undersized high-speed bulk packets on xHCI Nicolai Buchwitz
2026-10-20 14:33 ` [PATCH 1/4] usb: usbtmc: handle undersized high-speed bulk IN packets Nicolai Buchwitz
2026-10-20 14:46 ` sashiko-bot
2026-10-20 14:33 ` [PATCH 2/4] usb: usbtmc: handle undersized high-speed bulk OUT packets Nicolai Buchwitz
2026-10-20 14:39 ` sashiko-bot [this message]
2026-10-20 14:33 ` [PATCH 3/4] usb: usbtmc: add Rigol DP800 and DS1000Z to the packet I/O quirk table Nicolai Buchwitz
2026-10-20 14:41 ` sashiko-bot
2026-10-20 14:33 ` [PATCH 4/4] usb: usbtmc: send a ZLP after a full last packet in packet I/O mode Nicolai Buchwitz
2026-10-20 14:46 ` sashiko-bot
2026-10-20 16:42 ` [PATCH 0/4] usb: usbtmc: fix undersized high-speed bulk packets on xHCI Michal Pecio
2026-10-20 18:33 ` Nicolai Buchwitz
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