PTT with soundmodem

From: Mike Markowski (hpg@uppingham.co.uk)
Date: Sun Feb 01 2004 - 23:55:30 EET

  • Next message: Hamish Moffatt: "Re: PTT with soundmodem"

    Hi all,

    I'm thiiis close to having my packet set up working in kernel 2.4.24
    (currently unpatched). I'm using the user space soundmodem to create
    interface ax0 -- so I assume I don't need to do a kissattach. When I
    use soundmodemconfig to test the setup, I can successfully use the
    PTT gui button to get my rig to transmit (and also have no problem
    with PTT when using Tomi's great gMFSK!). However, while i can
    receive APRS packets while running xastir, when it tries to transmit,
    soundmodem complains after the xastir info:

       Tx: fm AB3AP-0 to APX121-0 via RELAY-0,WIDE-0 UI^ pid=F0
       =/:B7_;?z&y ehx@sey.de, Avondale PA (XASTIR-Linux)
     
       sm[15891]: ioctl: SNDCTL_DSP_SYNC: Device or resource busy (16)

    I see the LED on my PTT interface briefly light, but not long
    enough to activate the rig itself before the error above is
    printed.

    I use the same HW addr (AB3AP-1) in my soundmodem.conf as in my
    /etc/ax25/axports file. Anyone spot what I'm doing wrong? I haven't
    included any .conf files since I'm not at that machine now and am
    hoping the above description is enough to indicate my mistake, but
    I'll be happy to go get those if needed. Thanks for any ideas!

    Mike AB3AP
    -
    To unsubscribe from this list: send the line "unsubscribe linux-hams" in
    the body of a message to grtpfg@vision.net.id
    More majordomo info at http://vger.kernel.org/majordomo-info.html

    This archive was generated by hypermail 2b30 : Sun Feb 01 2004 - 23:56:00 EET