Thanks! I will follow this condition.
Mike Wang
1534 Taipei 27/Jun/2017
----- Original Message -----
From: "Greg KH" <gregkh@xxxxxxxxxxxxxxxxxxx>
To: "RAYONTECH.tw" <MikeWang@xxxxxxxxxxxxxxxx>
Cc: <linux-serial@xxxxxxxxxxxxxxx>
Sent: Tuesday, June 27, 2017 2:56 PM
Subject: Re: 8250/16?50 SERIAL DRIVER
On Tue, Jun 27, 2017 at 11:52:56AM +0800, RAYONTECH.tw wrote:
Dear Greg Kroah-Hartman:
I am engineer in RAYON Technology Co., Ltd. (www.rayontech.com.tw)
We are P584 and P588 card manufacture.
Originally we support Linux driver for our customer of P584 and P588
card
from kernel 1.0.
From kernel 3.x we found so many kernel version to have different
driver
structure to maintain. So we stop to support our customer for new kernel
version Linux.
That's not good, why not just submit a patch to add the needed support,
and then all versions of the kernel will work with your device and you
will not have to do any extra work at all?
Then I found that 8250_pci.c can support our card except that following
information in file.
/*Unknow vendors/cards - this should not be in linux/pci_ids.h*/
#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584 =====> Yes, this is
RAYON's
P584 card.
#define PCI_SUBDEVICE_ID_UNKNOWN_0x1588 0x1588 =====>Yes, this is
RAYON's
P588 card.
I don't know who and when offer such support. But it seems that they
have
P584 card offered only before 2012 and with wrong setting
"pbn_b0_4_115200".
And we have correct setting "pbn_b2_4_115200" and add P588 card there
after
2013 or some later kernel version.
Can you make up a patch for the code and send it to us (read
Documentation/SubmittingPatches for how to do this) and we can apply it
to the tree? That way I understand exactly what changes you need for
your devices.
thanks,
greg k-h
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