svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
cfumass(4)
CFUMASS(4) BSD Kernel Interfaces Manual CFUMASS(4)
NAME
cfumass — USB device side support for Mass Storage Class Transport
SYNOPSIS
This driver can be compiled into the kernel by placing these lines in the
kernel configuration file:
device usb
device usb_template
device ctl
device cfumass
The driver module can also be loaded at boot by adding this line to
loader.conf(5):
cfumass_load="YES"
DESCRIPTION
The cfumass driver provides device side support for emulating an USB mass
storage device compliant with the USB Mass Storage Class Bulk-Only (BBB)
Transport specification, implemented as a ctl(4) frontend driver.
To use cfumass:
· cfumass(4) must be loaded as a module or compiled into the kernel.
· The USB Mass Storage template must be chosen by setting the
hw.usb.template sysctl to 0.
· The USB OTG port must be working in USB device-side mode. This hap‐
pens automatically upon connection to a USB host.
· There must be a ctl(4) LUN configured for the cfumass port.
Upon loading, the driver creates a ctl(4) port named cfumass, presenting
the first LUN mapped for that port - usually LUN 0 - to the USB host.
See ctl.conf(5) and ctld(8) for details on configuring the LUN. See the
cfumass_enable and cfumass_dir rc(8) variables in rc.conf(5) for an auto‐
mated way to configure it at boot.
SYSCTL VARIABLES
These variables are available as both sysctl(8) variables and loader(8)
tunables:
hw.usb.cfumass.debug
Verbosity level for log messages from the cfumass driver. Set to
0 to disable logging or 1 to warn about potential problems.
Larger values enable debugging output. Defaults to 1.
hw.usb.cfumass.ignore_stop
Ignore START STOP UNIT SCSI commands with START and LOEJ bits
cleared. Some initiators send that command to stop the target
when the user attempts to gracefully eject the drive, but fail to
start it when the drive is reconnected. Set to 0 to handle the
command in a standards-compliant way, 1 to ignore it and log a
warning, or 2 to ignore it silently. Defaults to 1.
hw.usb.cfumass.max_lun
Max LUN number to report to the initiator (USB host). Must be
between 0 and 15. Some initiators incorrectly handle values
larger than 0. Defaults to 0.
SEE ALSO
ctl(4), umass(4), usb(4), usb_template(4), ctl.conf(5), ctld(8)
HISTORY
The cfumass driver first appeared in FreeBSD 11.1.
AUTHORS
The cfumass driver was developed by Edward Tomasz Napierala
<trasz@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
BSD April 21, 2018 BSD