From: Hannu Hartikainen <hannu@hrtk.in>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, Oliver Neukum <oneukum@suse.com>
Subject: Re: [PATCH] USB: cdc-acm: blacklist Heimann USB Appset device
Date: Wed, 23 Jun 2021 00:00:24 +0300 [thread overview]
Message-ID: <60d24f69.1c69fb81.fcc6c.14d6@mx.google.com> (raw)
In-Reply-To: <YNI/9/gbehhaNC1t@kroah.com>
On Tue, 22 Jun 2021 21:54:31 +0200, Greg KH <gregkh@linuxfoundation.org> wrote:
> If it's blacklisted here, what driver does control this device?
On my machine, no other device driver takes control. The `usbcore`
driver loads the `cdc-acm` driver because the descriptors match but
after cdc-acm returns without claiming the interfaces, no other driver
is probed AFAICT.
I've written an incomplete driver myself; I'll see if I can publish it
later. But the traffic is just USB bulk messages and should be doable in
userspace without a driver. Sadly the devices are not very common and
the USB traffic is undocumented.
Best,
Hannu
prev parent reply other threads:[~2021-06-22 21:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-22 14:14 [PATCH] USB: cdc-acm: blacklist Heimann USB Appset device Hannu Hartikainen
2021-06-22 19:54 ` Greg KH
2021-06-22 21:00 ` Hannu Hartikainen [this message]
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