Yes, the driver you saw is a UEFI driver and only for DXE phase. To enable this
feature, you need develop a new DebugCommunicationLibFtdi library instance for
SEC/PEI/DXE phase.
Thanks
Feng
From: Saiprasad Chavali [mailto:s...@marvell.com]
Sent: Thursday, May 7, 2015 8:56 AM
To: Tian, Feng; edk2-devel@lists.sourceforge.net
Subject: RE: [edk2] Question about WinDbg Support-- Target with USB->Serial
Adapter.
Hi Feng,
I have the Ftdi driver (optionrompackage) part of the image, unfortunately this
will not get loaded during early DXE phase (OR) supports the debug agent lib
right?
I believe the debug agent works with "debug communication lib usb" (or) "debug
communication serial port", if not mistaken.
Thanks
Sai
From: Tian, Feng [mailto:feng.t...@intel.com]
Sent: Wednesday, May 06, 2015 5:42 PM
To: Saiprasad Chavali;
edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Cc: Tian, Feng
Subject: RE: [edk2] Question about WinDbg Support-- Target with USB->Serial
Adapter.
Hi, Sai
We don't support this usage. Such usage model needs a Ftdi driver in Target
BIOS.
Thanks
Feng
From: Saiprasad Chavali [mailto:s...@marvell.com]
Sent: Thursday, May 7, 2015 1:18 AM
To: edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>;
Tian, Feng
Subject: RE: [edk2] Question about WinDbg Support-- Target with USB->Serial
Adapter.
Hi Tian,
The host is fine, how about the Target? The problem is with the Target the
Laptops/pc no more serial ports, so using the USB adapter?
Thanks
Sai
From: Tian, Feng [mailto:feng.t...@intel.com]
Sent: Wednesday, May 06, 2015 1:33 AM
To: edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Subject: Re: [edk2] Question about WinDbg Support-- Target with USB->Serial
Adapter.
For Usb2Serial cable, we support the usage that the cable's usb end is
connected with Host and the cable's serial end is connected with Target.
By this way, Host will identify a new COM port when connecting this cable like
above. UDK Debugger will treat it as a real serial cable to access.
From: Saiprasad Chavali [mailto:s...@marvell.com]
Sent: Wednesday, May 06, 2015 04:40
To: 'edk2-devel@lists.sourceforge.net'
Subject: [edk2] Question about WinDbg Support-- Target with USB->Serial Adapter.
Hi,
Need small clarification, to connect to Host running WinDbg/UEFI debugger tool
, do we have support for "USB->Serial Adapter" on Target ?
What I see "DebugCommunicationLibSerialPort" is hardcoded to 0x3F8 base
address? Unfortunately some of the DELL laptops, doesn't have serial port or
usb debug ports? So wondering if we have support for USB->Serial adapter
attached to "FtdiUsbSerialDriver".
Thanks for your quick response.
Sai
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