Date: Sat, 29 Jan 2005 18:23:45 +0300 From: Kiselev <1801@083.pfr.ru> To: freebsd-usb@freebsd.org Subject: Re: Re: problem with udbp and netgraph in the usb LAN Message-ID: <opsldedvw6dlwdk2@10.83.0.11>
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On Thu, Jan 27, 2005 at 09:54:14AM +0300, 1801 wrote: > Hi, all > I have usb2usb link cable (no name)and try make usb network on two > hosts (FreeBSD 5.3). > I do everything as written in man 4 udbp: > kldload netgraph > kldload udbp > Result : > udbp0: Prolific Technology Inc. PL2302 Host-Host interface, rev > 1.00/0.01, addr2, iclass 255/0. > Then make: > ngctl mkpeer udbp0: iface data inet, ifconfig ng0 10.0.0.1 10.0.0.2 on > both hosts. > Ping from 10.0.0.1 to 10.0.0.2 disappear through 1 minutes. > How to make steady connection? > Thanks in advance, Yuri. >> What kind of USB controller do you have? >> Looking through the code I found this problem: >> If a transmitted packet has a length that is divisible by >> "MaxPacketLength" then udbp_in_transfer_cb() will not be called. In >> other words the transmission will stop. So when udbp is sending >> packets, the flag USBD_FORCE_SHORT_XFER must be set? >> >> -- >> HPS My USB controller is: ohci0: <SiS 5571 USB controller> mem 0xee000000-0xee000fff irq 20 at device 2.2 on pci0 ohci0: [GIANT-LOCKED] usb0: <SiS 5571 USB controller> on ohci0 ohci1: <SiS 5571 USB controller> mem 0xee001000-0xee001fff irq 23 at device 2.3 on pci0 ohci1: [GIANT-LOCKED] usb1: <SiS 5571 USB controller> on ohci1. How to execute the idea set the flag USBD_FORCE_SHORT_XFER? I do not found anything in the(sysctl, rc.conf, GENERIC), and what to correct in the /usr/src/sys/dev/usb/ohci.c: if ((flags & USBD_FORCE_SHORT_XFER) && i don't know. Thanks in advance, Yuri
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