Hi, I a trying to test audio record/play on omap3evm EHCI port using below command. $ arecord -f dat -D plughw:0,0 | aplay -f dat -D plughw:0,0 I get error message .cannot submit datapipe for urb 0, error -28: not enough bandwidth. Same test works fine with MUSB controller. Log attached here, root@omap3evm:~/ajay/audio# arecord -f dat -D plughw:0,0 | aplay -f dat -D plugh w:0,0 Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo cannot submit datapipe for urb 0, error -28: not enough bandwidth aplay: set_params:1041: Unable to install hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 32 CHANNELS: 2 RATE: 48000 PERIOD_TIME: 125000 PERIOD_SIZE: 6000 PERIOD_BYTES: 24000 PERIODS: 4 BUFFER_TIME: 500000 BUFFER_SIZE: 24000 BUFFER_BYTES: 96000 TICK_TIME: 0 Regards, Ajay -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
