Date: Sun, 24 Dec 1995 23:43:22 -0500 From: FICNAR FRANK G <ficnar@ecf.toronto.edu> To: freebsd-multimedia <freebsd-multimedia@FreeBSD.ORG> Subject: "Interrupted system call" reading from /dev/dsp Message-ID: <Pine.SOL.3.91.951224232920.13283A-100000@spark27.ecf>
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I'm trying to write a short program to read 15 seconds of audio (8kHz, 8-bit, mono) from the CD channel of my SB16-SCSI-II. I can make all the required ioctl calls without any problems but when I try to read then from /dev/dsp (I make all the config stuff through /dev/mixer) it halts for a few seconds and then errors out with an "Interrupted system call." This is similar to a problem I have with doing a "cat /dev/dsp > audio.file" where it halts for a few seconds and then exits with the same message. Is there something obvious I am doing wrong? I am opening the correct devices, the ioctl calls to setup the rate, resolution, and recording source are all working. I have even tried calling both a RESET and a SYNC as the very first steps in the program after opening both devices but this doesn't help. I am running FreeBSD 2.0.5 and whatever voxware came with that version (Sound Driver:2.90-2 comes back from /dev/sndstat). Thanks for your time. ==================================================================== Frank Ficnar ficnar@ecf.toronto.edu --------------------------------------------------------------------
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