Date: Sat, 4 Jan 2014 16:41:43 +0000 (UTC) From: naddy@mips.inka.de (Christian Weisgerber) To: freebsd-stable@freebsd.org Subject: 9->10: USB device number changes Message-ID: <la9dk7$30ot$1@lorvorc.mips.inka.de>
next in thread | raw e-mail | index | archive | help
If you're going from FreeBSD 9 to 10, the attach order of USB devices may change. FreeBSD 9's GENERIC kernel has various USB drivers compiled in. On 10, only a few core drivers remain in GENERIC and drivers for other devices are loaded dynamically as kernel modules by devd(8). As a side effect, the attach order and thus the numbering may change. Specifically, I have four ucom(4) adapters on a machine, a mix of three uplcom(4) and one uftdi(4) device. On FreeBSD 9, these used to attach in the USB address order. On 10, the uplcoms all attach first, in address order, and the uftdi afterwards, so the corresponding devices cuaU[0-3] have been reordered. I just thought I'd mention it. -- Christian "naddy" Weisgerber naddy@mips.inka.de
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?la9dk7$30ot$1>