NAME

	usbsdmux – change mode of a usb–sd–mux device

SYNOPSIS

	aux/usbsdmux mode [ /dev/sdUxxxxx/raw ]

DESCRIPTION

The USB–SD–Mux from Linux Automation GmbH is a device that can programmatically attach and detach a sd–card from a device–under–test (DUT), allowing it to be re–written from another machine (HOST) without the need to physically swap the sd–card. The mode can be one of the following: off    The sd–card is disconnected from both the HOST and the DUT. dut   The sd–card is connected to the DUT and disconnected from the HOST. host   The sd–card is connected to the HOST and disconnected from the DUT. This program uses a vendor–specific SCSI command to change the mode. When not specified, it opens /dev/sdUdca10/raw which is the first USB–SD–Mux device attached to the HOST.

SOURCE

	/sys/src/cmd/aux/usbsdmux.c

SEE ALSO

	nusb(4) https://linux–automation.com/en/products/usb–sd–mux.html