Date: Sun, 30 Jan 2011 18:57:07 +0000 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: freebsd-usb@freebsd.org Subject: FTDI Com ports "just stop" Message-ID: <812AE6D766648AFE2AE736F3@Octa64>
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Hi, Attempting to save electricity here I've recently moved a lot of stuff to an Alix (AMD 'Geode' based) board, and consolidated a lot of my serial devices down to 2 '4 Port USB serial' adapters on that machine. This system is running FreeBSD 8.2-RC2 i386 - the USB devices appear as a bunch of: " usbus0: 12Mbps Full Speed USB v1.0 usbus1: 480Mbps High Speed USB v2.0 ugen0.1: <AMD> at usbus0 uhub0: <AMD OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0 ugen1.1: <AMD> at usbus1 uhub1: <AMD EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 uhub0: 4 ports with 4 removable, self powered uhub1: 4 ports with 4 removable, self powered ugen1.2: <vendor 0x0409> at usbus1 uhub2: <vendor 0x0409 product 0x0059, class 9/0, rev 2.00/1.00, addr 2> on usbus1 uhub2: 4 ports with 4 removable, self powered ugen1.3: <vendor 0x05e3> at usbus1 uhub3: <vendor 0x05e3 USB2.0 Hub, class 9/0, rev 2.00/7.02, addr 3> on usbus1 uhub3: 4 ports with 4 removable, self powered ugen1.4: <FTDI> at usbus1 uftdi0: <FT232R USB UART> on usbus1 ugen1.5: <vendor 0x05e3> at usbus1 uhub4: <vendor 0x05e3 USB2.0 Hub, class 9/0, rev 2.00/7.02, addr 5> on usbus1 uhub4: 4 ports with 4 removable, self powered ugen1.6: <ALCOR> at usbus1 uhub5: <ALCOR Generic USB Hub, class 9/0, rev 1.10/3.12, addr 6> on usbus1 uhub5: 4 ports with 4 removable, self powered ugen1.7: <FTDI> at usbus1 uftdi1: <USB HS SERIAL CONVERTER> on usbus1 ugen1.8: <FTDI> at usbus1 uftdi2: <USB HS SERIAL CONVERTER> on usbus1 ugen1.9: <FTDI> at usbus1 uftdi3: <USB HS SERIAL CONVERTER> on usbus1 ugen1.10: <FTDI> at usbus1 uftdi4: <USB HS SERIAL CONVERTER> on usbus1 ugen1.11: <ALCOR> at usbus1 uhub6: <ALCOR Generic USB Hub, class 9/0, rev 1.10/3.12, addr 11> on usbus1 uhub6: 4 ports with 4 removable, self powered ugen1.12: <FTDI> at usbus1 uftdi5: <USB HS SERIAL CONVERTER> on usbus1 ugen1.13: <FTDI> at usbus1 uftdi6: <USB HS SERIAL CONVERTER> on usbus1 ugen1.14: <FTDI> at usbus1 uftdi7: <USB HS SERIAL CONVERTER> on usbus1 ugen1.15: <FTDI> at usbus1 uftdi8: <USB HS SERIAL CONVERTER> on usbus1 " These end up with: " cuaU0 cuaU1.init cuaU2.lock cuaU4 cuaU5.init cuaU6.lock cuaU8 cuaU0.init cuaU1.lock cuaU3 cuaU4.init cuaU5.lock cuaU7 cuaU8.init cuaU0.lock cuaU2 cuaU3.init cuaU4.lock cuaU6 cuaU7.init cuaU8.lock cuaU1 cuaU2.init cuaU3.lock cuaU5 cuaU6.init cuaU7.lock " In /dev. The FT232R is a single device I have that I suspect is a 'serial device' with a FT232R wired internally to make it a 'USB' device. This all works great, but then - at some random point (could be a few hours, could be a few days) - all those serial ports 'stop'. The FT232R appears to be unaffected. Nothing is logged in syslog (apart from a bunch of 'irate' programs claiming they can't get data from the ports, and that things are timing out) - nothing is logged on the console either. They simply 'stop'. Even a simple "tip modem" (which is mapped to /dev/cuaU8) - and worked at boot time, now fails. You get a "connected" header, but no data (either way). Any hints how I can try and debug this? I think it might be related to the 2nd set of 4 FTDI ports, as I didn't notice this issue for the few weeks the system ran with just 4 ports connected. The FTDI ports themselves are two of these things: <http://www.amazon.co.uk/Max-Value-Serial-Adapter-MV42264/dp/B001GXR75G/ref=sr_1_12?ie=UTF8&qid=1296413295&sr=8-12>; (Despite the 'Max Value' I've used one of these on the previous FreeBSD 7.2 host for over a year, without issue). Any pointers for what I can do next time this happens to try and trouble shoot it? Obviously with nothing logged, no errors (just a lot of programs blocking on serial I/O) - I'm not too sure where to start... Thanks, -Karlhelp
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