usfs(4) [freebsd man page]

USFS(4) 						   BSD Kernel Interfaces Manual 						   USFS(4)

NAME

     usfs -- USB device side support for bulk only transport mass storage

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device usb
	   device usfs

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   usfs_load="YES"

DESCRIPTION

     The usfs driver provides support for emulating an USB mass storage device when the USB stack is activated in USB device side mode.

     Upon attach the driver creates a RAM disk which can be read and written.

SEE ALSO

     umass(4), usb(4)

HISTORY

     The usfs driver appeared in FreeBSD 8.

BSD
								  March 18, 2014							       BSD

UCHCOM(4)						   BSD Kernel Interfaces Manual 						 UCHCOM(4)

NAME

     uchcom -- WinChipHead CH341/CH340 serial adapter driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device usb
	   device ucom
	   device uchcom

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   uchcom_load="YES"

DESCRIPTION

     The uchcom driver provides support for the WinChipHead CH341/CH340 USB-to-RS-232 Bridge chip.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

HARDWARE

     The uchcom driver supports the following adapters:

     o	 HL USB-RS232

SEE ALSO

     tty(4), ucom(4), usb(4)

HISTORY

     The uchcom driver first appeared in NetBSD.  The first FreeBSD release to include it was FreeBSD 8.0.

BUGS

     Actually, this chip seems unable to drive other than 8 data bits and 1 stop bit line.

BSD
								 November 20, 2011							       BSD