Date: Mon, 8 Mar 2004 15:06:51 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-current@freebsd.org Cc: nsayer@freebsd.org Subject: USB Audio devices? Message-ID: <200403081506.40504.doconnor@gsoft.com.au>
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Does anyone have any? I have an M-Audio MobilePre USB and have modified uaudio to upload the firmware to the device using DFU, but I don't believe these changes are responsible for the problem as they worked fine in -stable, and once the device is programmed the added code is not touched. If I use mpg123 it runs fine, but if I try artsd I get the following crash. (I tried to get a crash dump but -current doesn't see cooperative on that front at the moment..) A hand written trace is here -> uchi_device_isoc_enter()+0x83 uchi_device_isoc_transfer()+0x26 usbd_transfer()+0xcb uaudio_chan_ptransfer()+0x120 uaudio_trigger_output()+0x78 ua_chan_trigger()+0x3e chn_trigger() chn_start() chn_write() dsp_write() spec_write() ... fault v. addr = 0xc fault code = supervisor read, page not present ins. ptr = 0x8:0xc0738fe3 stack ptr = 0x10:0xdd8fa9f0 frame prt = 0x10:0xdd8faa18 Process was artsd Instruction was movl 0xc(%eax), %eax -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 9A8C 569F 685A D928 5140 AE4B 319B 41F4 5D17 FDD5
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