From: Macpaul Lin <macpaul.lin@mediatek.com>
To: Lars Melin <larsm17@gmail.com>
Cc: Oliver Neukum <oneukum@suse.com>,
Andrey Arapov <andrey.arapov@gmail.com>,
Johan Hovold <johan@kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
Mediatek WSD Upstream <wsd_upstream@mediatek.com>,
<linux-usb@vger.kernel.org>, <stable@vger.kernel.org>
Subject: Re: [PATCH v5] cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
Date: Wed, 19 Dec 2018 10:22:17 +0800 [thread overview]
Message-ID: <1545186137.1821.5.camel@mtkswgap22> (raw)
In-Reply-To: <1545155303.16619.11.camel@mtkswgap22>
On Wed, 2018-12-19 at 01:48 +0800, Macpaul Lin wrote:
> On Tue, 2018-12-18 at 23:42 +0700, Lars Melin wrote:
> > On 12/18/2018 22:19, Macpaul Lin wrote:
> >
> >
> > > Hi all,
> > >
> > > After double check the PID/VID officially used (registered) by Mediatek
> > > Inc. The following VID/PID maps to the corresponding USB interface of
> > > the firmware of cell phone.
> > > VID:0x0e8d, PID:0x0003: Mediatek BROM.
> > > VID:0x0e8d, PID:0x2000: Mediatek Preloader.
> > >
> > > I will update Patch v6 for changing Andrey's previous comments.
> > >
> >
> > You should show us a verbose lsusb of your 0e8d:0003 before changing
> > Andrey's submission.
> >
> >
> > Season's Greeting
> > Lars
>
> Hi Lars, Oliver, and Johan,
>
> Well, it's about 1:30 a.m. here in Taiwan. I can do lsusb dump tomorrow
> in Mediatek's office.
> But there are a lot of tutorials about hacking and flash method of
> customized firmware over the WWW. I can find one of the tutorial shows
> these VID/PID combinations has been used since 2014.
> (Actually they've been registered officially earlier than 2014.)
>
> For example, please check the reference tutorial:
> https://mattboyer.github.io/PYaffs/2014/07/31/Hacklog%233.html
> You can check lsusb dump in this picture.
> https://mattboyer.github.io/PYaffs/images/03_device_usbview.png
> Both VID/PID of Mediatek BROM and Preloader can be found in INF file
> pasted in this tutorial, too.
> Sorry for the proprietary information policy I cannot paste them all,
> but the VID/PID set of BROM and Preloader are just exactly the same
> as described in this tutorial.
>
Hi all,
Here is the lsusb dump of the BROM and Preloader state of the phone.
lsusb of BROM:
Bus 001 Device 012: ID 0e8d:0003 MediaTek Inc. MT6227 phone
lsusb of Preloader:
Bus 001 Device 011: ID 0e8d:2000 MediaTek Inc. MT65xx Preloader
dmesg of BROM:
[52138.849233] usb 1-1: new high-speed USB device number 12 using
ehci-pci
[52139.252557] usb 1-1: New USB device found, idVendor=0e8d,
idProduct=0003
[52139.252559] usb 1-1: New USB device strings: Mfr=0, Product=0,
SerialNumber=0
[52139.260179] cdc_acm 1-1:1.0: ttyACM0: USB ACM device
dmesg of Preloader:
[52145.052952] usb 1-1: new high-speed USB device number 13 using
ehci-pci
[52145.410432] usb 1-1: New USB device found, idVendor=0e8d,
idProduct=2000
[52145.410434] usb 1-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[52145.410435] usb 1-1: Product: MT65xx Preloader
[52145.410437] usb 1-1: Manufacturer: MediaTek
Regards,
Macpaul Lin
WARNING: multiple messages have this Message-ID (diff)
From: macpaul.lin@mediatek.com
To: Lars Melin <larsm17@gmail.com>
Cc: Oliver Neukum <oneukum@suse.com>,
Andrey Arapov <andrey.arapov@gmail.com>,
Johan Hovold <johan@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mediatek WSD Upstream <wsd_upstream@mediatek.com>,
linux-usb@vger.kernel.org, stable@vger.kernel.org
Subject: [v5] cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
Date: Wed, 19 Dec 2018 10:22:17 +0800 [thread overview]
Message-ID: <1545186137.1821.5.camel@mtkswgap22> (raw)
On Wed, 2018-12-19 at 01:48 +0800, Macpaul Lin wrote:
> On Tue, 2018-12-18 at 23:42 +0700, Lars Melin wrote:
> > On 12/18/2018 22:19, Macpaul Lin wrote:
> >
> >
> > > Hi all,
> > >
> > > After double check the PID/VID officially used (registered) by Mediatek
> > > Inc. The following VID/PID maps to the corresponding USB interface of
> > > the firmware of cell phone.
> > > VID:0x0e8d, PID:0x0003: Mediatek BROM.
> > > VID:0x0e8d, PID:0x2000: Mediatek Preloader.
> > >
> > > I will update Patch v6 for changing Andrey's previous comments.
> > >
> >
> > You should show us a verbose lsusb of your 0e8d:0003 before changing
> > Andrey's submission.
> >
> >
> > Season's Greeting
> > Lars
>
> Hi Lars, Oliver, and Johan,
>
> Well, it's about 1:30 a.m. here in Taiwan. I can do lsusb dump tomorrow
> in Mediatek's office.
> But there are a lot of tutorials about hacking and flash method of
> customized firmware over the WWW. I can find one of the tutorial shows
> these VID/PID combinations has been used since 2014.
> (Actually they've been registered officially earlier than 2014.)
>
> For example, please check the reference tutorial:
> https://mattboyer.github.io/PYaffs/2014/07/31/Hacklog%233.html
> You can check lsusb dump in this picture.
> https://mattboyer.github.io/PYaffs/images/03_device_usbview.png
> Both VID/PID of Mediatek BROM and Preloader can be found in INF file
> pasted in this tutorial, too.
> Sorry for the proprietary information policy I cannot paste them all,
> but the VID/PID set of BROM and Preloader are just exactly the same
> as described in this tutorial.
>
Hi all,
Here is the lsusb dump of the BROM and Preloader state of the phone.
lsusb of BROM:
Bus 001 Device 012: ID 0e8d:0003 MediaTek Inc. MT6227 phone
lsusb of Preloader:
Bus 001 Device 011: ID 0e8d:2000 MediaTek Inc. MT65xx Preloader
dmesg of BROM:
[52138.849233] usb 1-1: new high-speed USB device number 12 using
ehci-pci
[52139.252557] usb 1-1: New USB device found, idVendor=0e8d,
idProduct=0003
[52139.252559] usb 1-1: New USB device strings: Mfr=0, Product=0,
SerialNumber=0
[52139.260179] cdc_acm 1-1:1.0: ttyACM0: USB ACM device
dmesg of Preloader:
[52145.052952] usb 1-1: new high-speed USB device number 13 using
ehci-pci
[52145.410432] usb 1-1: New USB device found, idVendor=0e8d,
idProduct=2000
[52145.410434] usb 1-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[52145.410435] usb 1-1: Product: MT65xx Preloader
[52145.410437] usb 1-1: Manufacturer: MediaTek
Regards,
Macpaul Lin
next prev parent reply other threads:[~2018-12-19 2:22 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 3:27 cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader macpaul.lin
2018-12-18 5:00 ` [PATCH v2] " Macpaul Lin
2018-12-18 5:00 ` [v2] " macpaul.lin
2018-12-18 9:02 ` [PATCH v2] " Johan Hovold
2018-12-18 9:02 ` [v2] " Johan Hovold
2018-12-18 10:41 ` [PATCH v3] " Macpaul Lin
2018-12-18 10:41 ` [v3] " macpaul.lin
2018-12-18 10:54 ` [PATCH v3] " Johan Hovold
2018-12-18 10:54 ` [v3] " Johan Hovold
2018-12-18 11:38 ` [PATCH v4] " Macpaul Lin
2018-12-18 11:38 ` [v4] " macpaul.lin
2018-12-18 11:44 ` [PATCH v4] " Johan Hovold
2018-12-18 11:44 ` [v4] " Johan Hovold
2018-12-18 11:59 ` [PATCH v5] " Macpaul Lin
2018-12-18 11:59 ` [v5] " macpaul.lin
2018-12-18 12:38 ` [PATCH v5] " Johan Hovold
2018-12-18 12:38 ` [v5] " Johan Hovold
2018-12-18 13:37 ` [PATCH v5] " Oliver Neukum
2018-12-18 13:37 ` [v5] " Oliver Neukum
2018-12-18 14:26 ` [PATCH v5] " Macpaul Lin
2018-12-18 14:26 ` [v5] " macpaul.lin
2018-12-18 15:19 ` [PATCH v5] " Macpaul Lin
2018-12-18 15:19 ` [v5] " macpaul.lin
2018-12-18 16:42 ` [PATCH v5] " Lars Melin
2018-12-18 16:42 ` [v5] " Lars Melin
2018-12-18 17:48 ` [PATCH v5] " Macpaul Lin
2018-12-18 17:48 ` [v5] " macpaul.lin
2018-12-19 0:45 ` [PATCH v5] " Lars Melin
2018-12-19 0:45 ` [v5] " Lars Melin
2018-12-19 2:22 ` Macpaul Lin [this message]
2018-12-19 2:22 ` macpaul.lin
2018-12-19 3:16 ` [PATCH v5] " Macpaul Lin
2018-12-19 3:16 ` [v5] " macpaul.lin
2018-12-19 3:31 ` [PATCH v5] " Lars Melin
2018-12-19 3:31 ` [v5] " Lars Melin
2018-12-19 4:03 ` [PATCH v5] " Macpaul Lin
2018-12-19 4:03 ` [v5] " macpaul.lin
2018-12-19 8:56 ` [PATCH v5] " Oliver Neukum
2018-12-19 8:56 ` [v5] " Oliver Neukum
2018-12-20 15:19 ` [PATCH v5] " Greg Kroah-Hartman
2018-12-20 15:19 ` [v5] " Greg Kroah-Hartman
2018-12-18 15:37 ` [PATCH v6] " Macpaul Lin
2018-12-18 15:37 ` [v6] " macpaul.lin
2018-12-19 4:11 ` [PATCH v7] " Macpaul Lin
2018-12-19 4:11 ` [v7] " macpaul.lin
2018-12-19 9:00 ` [PATCH v7] " Johan Hovold
2018-12-19 9:00 ` [v7] " Johan Hovold
2018-12-20 15:28 ` [PATCH v7] " Oliver Neukum
2018-12-20 15:28 ` [v7] " Oliver Neukum
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