#Genesys logic usb hub driver serial#
#Genesys logic usb hub driver drivers#

Of course, if you have multiple Serial-To-USB adapters that have different VID:PID combinations, then there is no need for a Serial identifier, it is only needed if you have multiple adapters from the same manufacturer which is often the case. How can we tell which is which? Fortunately, to uniquely differentiate USB devices, we can use Serial identifier. Most serial devices seem to use the FTDI FT232 as seen above which has a Vendor ID (VID) of 0x0403 and Product ID (PID) of 0圆001, so we can't distinguish among the devices alone by the VIDs and PIDs. 4-port hubīus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubīus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubīus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 4-Port HUBīus 003 Device 059: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICīus 003 Device 055: ID 1a40:0101 Terminus Technology Inc. CP210x UART Bridge / myAVR mySmartUSB lightīus 003 Device 060: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICīus 003 Device 056: ID 1a40:0101 Terminus Technology Inc. 4-Port HUBīus 003 Device 057: ID 10c4:ea60 Cygnal Integrated Products, Inc. 4-Port HUBīus 003 Device 075: ID 1278:0507 Starlight Xpress Lodestar autoguiderīus 003 Device 052: ID 1a40:0101 Terminus Technology Inc. 4-Port HUBīus 003 Device 053: ID 1a40:0101 Terminus Technology Inc. Running lsusb in Ikarus Observatory's Odroid, I get the following: Bus 006 Device 002: ID 0bda:8153 Realtek Semiconductor Corp.īus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubīus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubīus 004 Device 002: ID 05e3:0616 Genesys Logic, Inc.īus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubīus 003 Device 054: ID 1a40:0101 Terminus Technology Inc. To overwrite its behavior, we need to write a udev rules file to have persistent names for our devices.Īll USB devices have a Vendor ID and a Product ID. When you connect your serial device, udev creates a device node in /dev. Linux offers a method to make persistent port mappings across reboots and disconnections! It's called udev and it is a device manager for the Linux kernel. Wouldn't be nice if we can have /dev/mount and /dev/focuser all the time?! This situation is indeed quite frustrating and completely unacceptable especially when operating remote automated observatories. When you attempt to connect to the device again, you'd be surprised as why INDI is having trouble connecting to it, only to realize that the port mapping changes. If you reboot the device or unplug/replug the USB device, you are very likely to end up with a different device designation under /dev.

#Genesys logic usb hub driver drivers#

This device port is needed in many INDI drivers in order to communicate with the device, but the problem is that the device designations are not persistent. On Linux, USB serial devices are created incrementally on the /dev file system and often appear as /dev/ttyUSB0, /dev/ttyUSB1. Since modern PCs/SBCs no longer support connecting to RS232 via the traditional DB9/DB25 connectors, USB serial adapters are often used to pass the RS232 data to the host via a USB stream. Numerous astronomical devices still communicate with the venerable RS232 standard despite the wide adoption of Universal Serial Bus (USB) protocol.