USBSDMUX(8)USBSDMUX(8)

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

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