linux-kernel - Re: [PATCH] drivers/serial/8250_pci.c (add support for '8-port RS-232 MIC-3620 from advantech'

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Message-ID: <20090121123215.1b3acc4d@lxorguk.ukuu.org.uk>
Date:	Wed, 21 Jan 2009 12:32:15 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Niels de Vos <niels.devos@...cor-nixdorf.com>
Cc:	Paulius Zaleckas <paulius.zaleckas@...tonika.lt>,
	Michael Bramer <michael@...support.de>,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH] drivers/serial/8250_pci.c (add support for '8-port
 RS-232 MIC-3620 from advantech'

> >>  static struct pci_device_id serial_pci_tbl[] = {
> >> +       {       PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCI3620,
> >> +               0x3620, PCI_ANY_ID, 0, 0,
> 
> Why not use PCI_VENDOR_ID_ADVANTECH as PCI_SUBVENDOR_ID too?

The Advantech vendor id is not 0x3620. This confused me as well which is
why I asked for an lspci. Advantech has stuck the device id in the
subvendor bits and '1' in the subdevice (so it should be 1 not
PCI_ANY_ID).

Alan
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