https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199013
Bug ID: 199013
Summary: Add ID for StarTech.com PCIe RS232 Serial Adapter Card
Product: Base System
Version: 10.1-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: mlsemo...@gmail.com
Created attachment 154983
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=154983&action=edit
Add ID for Moschip chipset on StarTech.com serial adaper card PEX2S553
Hi! I bought a StarTech.com PCIe 2-port serial adapter card, Part # PEX2S553.
I couldn't get it to work with the scc(4) driver. Thinking it was a matter of
not knowing what serial driver to use--scc? puc? uart?--I grepped around the
latest svn pull of 10.1-RELEASE until I found sys/dev/uart/uart_bus_pci.c. I
adapted one of the MosChip entries and provide it as a patch. This card indeed
uses the scc(4) driver.
Serial sessions work fine, and the PPS is supported by this card. I can have
one port at 4800 baud and the other port at 115200 baud. Looks good and my
Garmin GPS18-LVC performs over it continuously, performing much like it did on
x86 with standard motherboard serial ports. IOW, it works for every way I
would normally use the serial port, no traps or other issues noted by the
kernel. I did have issue trying to interrupt a process of doing a `cat
/dev/ttyu3` while piping /dev/urandom from the other end of the serial cable,
but that's been the only trouble spot (solved by clean reboot).
The instructions claim that this card is a Moschip MCS9922CV-AA chipset.
No other alterations have been required, and I wouldn't know how to make such
modifications.
dmesg shows this on boot:
uart2: <MosChip MCS9922 PCIe to Peripheral Controller> port 0xdcf0-0xdcf7 mem
0xdfdfc000-0xdfdfcfff,0xdfdfd000-0xdfdfdfff irq 17 at device 0.0 on pci2
uart3: <MosChip MCS9922 PCIe to Peripheral Controller> port 0xdcf8-0xdcff mem
0xdfdfe000-0xdfdfefff,0xdfdff000-0xdfdfffff irq 18 at device 0.1 on pci2
Thanks!
Michael
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
freebsd-bugs@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
