From: Oliver Neukum <oneukum@suse.com>
To: Chris <chris@cyber-anlage.de>,
linux-usb@vger.kernel.org, johan@kernel.org
Subject: Re: pl2303 : unknown device type
Date: Tue, 27 Jul 2021 15:24:28 +0200 [thread overview]
Message-ID: <870cef37-ac7b-42b7-5691-088434c3b558@suse.com> (raw)
In-Reply-To: <2560053.x2KRyp2eMa@cyber-bucket>
On 27.07.21 14:37, Chris wrote:
> This problem was introduced with 5.13 and still persists in 5.13.5
> After downgrading to 5.12.x, everything works like expected. Tested on
> archlinux. The device is an "ICP-DAS I-7561"
>
Hi,
this is almost certainly 8a7bf7510d1f43994b39a677e561af4ee6a1a0ae
("USB: serial: pl2303: amend and tighten type detection")
Your device just says 0 everywhere:
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
We could add a default type, but does that make sense?
Getting Johan into the loop.
Regards
Oliver
next prev parent reply other threads:[~2021-07-27 13:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 12:37 pl2303 : unknown device type Chris
2021-07-27 13:24 ` Oliver Neukum [this message]
2021-07-29 10:15 ` Johan Hovold
2021-07-29 10:10 ` Johan Hovold
2021-07-29 13:55 ` Chris
2021-07-30 7:32 ` Johan Hovold
2021-07-30 12:11 ` Johan Hovold
2021-07-30 12:21 ` [PATCH] USB: serial: pl2303: fix HX type detection Johan Hovold
2021-07-30 12:29 ` Greg KH
2021-07-30 15:11 ` Johan Hovold
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