From: Jimmy Assarsson <extja@kvaser.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Subject: Re: Associate physical device with device name
Date: Fri, 9 Feb 2018 16:35:17 +0100 [thread overview]
Message-ID: <e5b62163-2ec7-eb89-e2a3-d8269292595f@kvaser.com> (raw)
In-Reply-To: <771a0c6e-c94c-7dc2-ffa0-06507aab077d@pengutronix.de>
On 2018-02-09 14:24, Marc Kleine-Budde wrote:
> On 02/09/2018 12:21 PM, Jimmy Assarsson wrote:
>> All devices with the same EAN look identical, since we do not set serial
>> number in the USB descriptor.
>
> That should be done on the next FW revision.
It is left out on purpose. I don't remember the details, but it had
something to do with Windows reinstalling the driver whenever a device
with different serial number is connected to the same USB port.
> Ok - I see two possibilities.
>
> 1) sysfs file
> Add a file to sysfs that contains the serial number, see:
> http://lxr.bootlin.com/linux/latest/source/drivers/net/can/softing/softing_main.c#L718
>
> 2) ethtool eeprom
> You can export the serial number via ethtool's dump eeprom functionality.
>
> Better try 1).
Great :) Will try this next week.
Thanks!
next prev parent reply other threads:[~2018-02-09 15:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-26 14:38 Associate physical device with device name Jimmy Assarsson
2018-02-08 12:05 ` Jimmy Assarsson
2018-02-08 12:45 ` Marc Kleine-Budde
2018-02-08 13:04 ` Jimmy Assarsson
2018-02-09 7:50 ` Jimmy Assarsson
2018-02-09 10:47 ` Marc Kleine-Budde
2018-02-09 11:21 ` Jimmy Assarsson
2018-02-09 13:24 ` Marc Kleine-Budde
2018-02-09 15:35 ` Jimmy Assarsson [this message]
2018-02-09 17:09 ` Oliver Hartkopp
2018-02-10 9:58 ` Kurt Van Dijck
2018-02-10 11:01 ` André Hartmann
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