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UMASS(4) Device Drivers Manual UMASS(4)

umassUSB mass storage support

umass* at uhub?
scsibus* at umass?

The umass driver provides support for USB mass storage class devices.

scsi(4), uhub(4), usb(4), disklabel(8)

The umass driver first appeared in FreeBSD 4.0. OpenBSD support was added in OpenBSD 2.7.

June 26, 2008 OpenBSD-5.6