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umidi(4) [netbsd man page]

UMIDI(4)						   BSD Kernel Interfaces Manual 						  UMIDI(4)

umidi -- USB support for MIDI devices SYNOPSIS
umidi* at uhub? midi* at umidi? DESCRIPTION
The umidi driver supports USB MIDI devices that conform to the Universal Serial Bus Device Class Definition for MIDI Devices. Vendor-spe- cific support is also included for the following: Midiman devices MidiSport 2x4 Roland and Edirol devices Fantom-X PC300 PCR SC8820 SC8850 SCD70 SD20 SD80 SD90 SK500 SonicCell U8 UA25 UA100 UA101 UA10F UA4FX UA700 UA1000 UM1 UM2 UM3 UM4 UM550 UM880N XV5050 Yamaha devices UX256 (product-specific support) Others Other Yamaha MIDI devices will be attached and are expected to work also. Devices supported by the umidi driver will appear as midi(4) devices. SEE ALSO
midi(4), usb(4) HISTORY
The umidi driver appeared in NetBSD 1.6. BSD
October 14, 2007 BSD

Check Out this Related Man Page

oss_usb(7)							    OSS Devices 							oss_usb(7)

oss_usb - USB Audio/MIDI/Mixer driver DESCRIPTION
The Open Sound System driver for USB Audio and MIDI devices. AUDIO The Audio driver supports: o 8-96Khz Playback/Recording o 8 or 16 or 32 bits o 2, 4, 6 or 8 channel audio. o SPDIF digital output and Input o AC3 passthrough o Volume control and device input mixer MIDI The oss_usb driver supports all MIDI devices that are compatible with the official USB MIDI specification. In addition the driver supports few devices that use their own private protocol (including some Yamaha and Midiman models). USB MIXER The USB Audio mixer is a new type of mixer that doesn't have the normal volume controls found on AC97 or Legacy SB devices. The USB audio mixer provides control for selecting the Alternate device setting - this usually allows the device to be switched into a Professional audio mode (eg 24bit or 96Khz mode) ALTERNATIVE SETTINGS Some USB audio devices use a feature called as alternative settings for bandwidth management. Typically such devices have multiple high speed inputs and outputs that may require more bandwidth than provided by the USB bus. The alternative settings feature is used to select between multiple low speed devices or just few high speed devices. When the device has multiple alternative settings an "altsetting" selector will be visible in the control panel for the device (use oss- mix(1) or ossxmix(1) to change it). Alternative setting OFF means that all audio devices are disabled. The other settings provide different combinations of high/medium speed devices. You can use the ossinfo(1) command (ossinfo -a -v3) to find out the devices supported by the currently selected alternative settings and the capabilities of them. KNOWN BUGS
Under Linux it is necessary to run the ossdetect -d and ossdevlinks commands after an USB device has been hot-plugged. Alternatively you can execute soundoff and soundon to reload OSS. OPTIONS
/etc/oss4/conf/oss_usb.conf Device configuration file AUTHOR
4Front Technologies 16 December 2012 oss_usb(7)
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