Date: Tue, 21 Jul 1998 12:38:27 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: John Wilkes <john@wilkes.com> Cc: freebsd-questions@FreeBSD.ORG, sef@FreeBSD.ORG, emulation@FreeBSD.ORG Subject: Re: linux emulation and dongle on serial port Message-ID: <Pine.BSF.3.95.980721122926.25322E-100000@current1.whistle.com> In-Reply-To: <Pine.BSF.3.96.980721085108.297A-100000@on-the-road.wilkes.com>
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This is what I was going to ask you to do NEXT :-) what does it do under LINUX? under FreeBSD you may try TRUSS as well as ktrace.. (hmmm is truss available in 2.2.x?) On Tue, 21 Jul 1998, John Wilkes wrote: > On Fri, 3 Jul 1998, Julian Elischer wrote: > > > > On Fri, 3 Jul 1998, John Wilkes wrote: > > > > > I want to use some Linux software which requires a Rainbow dongle on the > > > serial port. It works fine running native Linux, but with FreeBSD (2.2.5 > > > and 2.2.6) Linux emulation, the hardware dongle is not recognized. Is > > > there any restriction on using the serial ports with linux emulation? > > > > You might try see what it's doing under linux with trace > > I finally did this and here is what it says: > > 329 rbuxid CALL open(0x8001ba0,0x2,0x1b6) > 329 rbuxid NAMI "/compat/linux/dev/finsim" > 329 rbuxid NAMI "/dev/finsim" > 329 rbuxid RET open 3 > 329 rbuxid CALL obs_vread(0xe,0xefbfdc58,0xefbfdc48) > 329 rbuxid RET obs_vread 0 > 329 rbuxid CALL ioctl(0x3,0x5405 ,0x8003bc0) > 329 rbuxid RET ioctl 0 > 329 rbuxid CALL ioctl(0x3,0x5407 ,0x8003bd8) > 329 rbuxid RET ioctl 0 > 329 rbuxid CALL old.sigvec(0x3,0xefbfdb54) > 329 rbuxid RET old.sigvec 0 > 329 rbuxid CALL dup2(0xefbfdb10) > 329 rbuxid RET dup2 671899648/0x280c6000 I wonder what fd they are duplicating? 3? > 329 rbuxid CALL ioctl(0x3,0x5401 ,0xefbfdb18) I am guessing this is setting the baud rate or something.. > 329 rbuxid RET ioctl 0 why would you lseek on a device? is /dev/finsim the serial port? > 329 rbuxid CALL old.lseek(0x3,0,0) > 329 rbuxid RET old.lseek 0 > 329 rbuxid CALL write(0x3,0x280c6000,0x50) > 329 rbuxid GIO fd 3 wrote 80 bytes > "FINTRONIC#0S81NCAAAAABBBBBCCCCCDDDDDEEEEEFFFFFGGGGGHHHHHIIIIIJJJJJKKKK\ > KLLLLLMMMM" > 329 rbuxid RET write 80/0x50 > 329 rbuxid CALL old.lseek(0x3,0,0) > 329 rbuxid RET old.lseek 0 > 329 rbuxid CALL obs_vread(0xe,0xefbfdc34,0xefbfdc24) > 329 rbuxid RET obs_vread 0 read returned 0 bytes. I wonder if 0xe is the duped fd for 0x3 ? > 329 rbuxid CALL recvmsg(0xa) > 329 rbuxid RET recvmsg 10/0xa Ok, so I wonder where it's getting a message from? > 329 rbuxid CALL read(0x3,0x280c6000,0x10000) > 329 rbuxid PSIG SIGALRM caught handler=0x8000c40 mask=0x0 code=0x0 > 329 rbuxid RET read -1 errno -4 Unknown error: -4 > 329 rbuxid CALL ioctl(0x3,0x5407 ,0x8003bd8) > 329 rbuxid RET ioctl 0 > > The call to read() apparently fails, but errno -4 is undefined, as far as I > know. Unfortunately, I do not have source to the program. possibly someone with more linux knowledge may be more helpful.. try sean fagan... > > I'm running as root, so permissions shouldn't be an issue. I can tip to > the port, and if a modem is attached, talk to it just fine. > > If anyone can offer clues as to what's going in in the above trace, I would > be very grateful! > > John Wilkes > > inet: john@wilkes.com | "Try not. > addr: 321 High School Rd NE #367 | Do. > city: Bainbridge Island, Wash. | Or do not. > code: 98110 | There is no try." > icbm: 47 37 42 N / 122 29 36 W | - Yoda > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message
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