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Date: Wed, 24 Apr 2024 14:39:18 -0700
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Cc: Jonathan Kim <jonathankim@gctsemi.com>, Dean ahn <deanahn@gctsemi.com>,
	Won Kang <wonkang@gctsemi.com>, support@gctsemi.com,
	linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev
Subject: Re: [RFC] staging: gdm724x: How to proceed with drivers gdmtty and
 gdmulte
Message-ID: <2024042433-reimburse-cork-8239@gregkh>
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On Wed, Apr 24, 2024 at 08:33:25PM +0200, Philipp Hortmann wrote:
> Dear Sirs,
> 
> Won Kang contributed a driver gdm724x to the Linux kernel staging subsystem
> in 2013. Have you done any tests with this hardware in the years up to
> today?
> 
> struct usb_device_id lists the following devices the driver can work with:
> PID_GDM7240		0x8000
> PID_GDM7243		0x9000
> 
> but on http://www.linux-usb.org/usb.ids I can only find:
> 0x1076  GCT Semiconductor, Inc.
> 	0x0031  Bluetooth Device
> 	0x0032  Bluetooth Device
> 	0x8002  LU150 LTE Modem [Yota LU150]

Note, not all USB devices (I would guess only a fraction) are listed in
the usb.ids file because USB devices are self-described (i.e. the
strings are in the device itself).  So don't go by the presence or not
of a device in this file to determine if it is "real" or not.

thanks,

greg k-h