Re: USB UHCI Problems on 8-Stable
On Saturday 17 March 2012 09:58:53 Holm Tiffe wrote: Hi, The BULK transfer stops by a stall. I suspect the UHCI is receiving more data than it can, and is hardware programmed to stop it looks like. I can't change that behaviour. It is not a bug in the FreeBSD USB driver I think. Try this patch to /usr/ports/devel/openocd/ make extract patch ee ./work/openocd-0.5.0/src/jtag/drivers/jlink.c Uhh, may I use Vi? :-) Change: result = jlink_usb_read(jlink, in_length); Into: /* must read at least one packet at a time! */ result = jlink_usb_read(jlink, in_length + ((-in_length) 63)); Then re-compile and try again! --HPS Ok, I'll try that patch(~ sunday eavening, I'm out of town currntly), but it adresses the problem with openocd. ( which is good anyways). I is still a bug in FreeBSD's driver that there is now way to wake up the controller again and I think that should be changed. (please remember, most Kerenels are running with compiled in drivers, so thie singe solution is a reboot to reactivate the controller. I dont know that much about USB, but I sure that FreeBSDs behavior in this case isn't that what we really want. I think usbconfig -d ugen1.1 reset schould be made working.. I will think about it. Currently a suspend and resume will do that, though it might be an idea to allow that runtime using usbconfig. --HPS ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to freebsd-usb-unsubscr...@freebsd.org
Re: USB UHCI Problems on 8-Stable
On Thursday 15 March 2012 13:48:40 Holm Tiffe wrote: Hi, For some time I had problems with my Cam (Olympus FE-230), it wouldn't get recognized again after unplugging it from the USB Connector. Now I have a very similar Problem while trying to get an J-Link V8 compatible Jtag debugger working in conjunction with openocd. Maybe there are bugs in openocd, but the bigger ones seems to be in FreeBSDs USB drivers. In the meantime I've cvs-supped to 8.3PRERELEASE (yesterday) built world and kernel. I've commented the ?hci drivers out of the kernel config and set USB_DEBUG. At fist please Cc me, I'm not on freebsd-usb. After Loading the uhci module: Hi, Could you log the USB traffic on the UHCI controller using usbdump ? It would be interesting to see what is going on. Have you tried using an external High-Speed HUB? --HPS ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to freebsd-usb-unsubscr...@freebsd.org
Re: USB UHCI Problems on 8-Stable
Hi, For some time I had problems with my Cam (Olympus FE-230), it wouldn't get recognized again after unplugging it from the USB Connector. Now I have a very similar Problem while trying to get an J-Link V8 compatible Jtag debugger working in conjunction with openocd. Maybe there are bugs in openocd, but the bigger ones seems to be in FreeBSDs USB drivers. In the meantime I've cvs-supped to 8.3PRERELEASE (yesterday) built world and kernel. I've commented the ?hci drivers out of the kernel config and set USB_DEBUG. At fist please Cc me, I'm not on freebsd-usb. After Loading the uhci module: Hi, Could you log the USB traffic on the UHCI controller using usbdump ? It would be interesting to see what is going on. Have you tried using an external High-Speed HUB? --HPS Here is the dump: http://www.tiffe.de/other/usbus1.dump This is connecting the J-link, starting openocd twice, removing and reconnecting the J-link followed by a kldunload uhci. Can't provide a dump while kldloading since usbdump stops when the driver is unloaded. I have no Highspeedr-Hub so this was a direct connect. Results are the same regardless whcih interface is used. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583 www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741 ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to freebsd-usb-unsubscr...@freebsd.org
