The Cypress EZ-USB (2131Q, 2131S, 2135S) series is a part of Cypress Semiconductor's EZ-USB family, which is commonly used for USB-to-serial communication or custom USB peripheral designs. The EEPROM missing error you are encountering typically indicates that the USB device is expecting to read configuration data from an EEPROM (which might be either missing or not properly recognized).
The ij6_usb1_2601sys is a specific driver package designed to work with these Cypress USB devices, but issues can arise during installation, particularly if the EEPROM is not being read or if the driver isn't properly installed.
Here's a step-by-step guide to resolving the issue:
Cypress EZ-USB (2131Q/2131S/2135S) - EEPROM missing (using ij6_usb1_2601.sys) drivers / FUJITSU ESPRIMO P
Device Name:
Cypress EZ-USB (2131Q/2131S/2135S) - EEPROM missing (using ij6_usb1_2601.sys)
Hardware ID:
USB\VID_0547&PID_2131&REV_0004
USB\VID_0547&PID_2131 <---- Device ID matches with our database
Compatible IDs:
USB\CLASS_FF&SUBCLASS_FF&PROT_FF
USB\CLASS_FF&SUBCLASS_FF
USB\CLASS_FF
USB\VID_0547&PID_2131 <---- Device ID matches with our database
Compatible IDs:
USB\CLASS_FF&SUBCLASS_FF&PROT_FF
USB\CLASS_FF&SUBCLASS_FF
USB\CLASS_FF
Version:
0,1969-12-31
This download provides Cypress EZ-USB (2131Q/2131S/2135S) - EEPROM missing (using ij6_usb1_2601.sys) driver and is supported on FUJITSU ESPRIMO P that is designed to run on Windows Operating System Only.
Device Type:
usb
Driver Version:
0
Operating System:
2K,XP,2K3,VISTA,WIN7,WIN8,WIN81,WIN10/32bits
Driver Date:
1969-12-31
Manufacturer:
Cypress Semiconductor
You are viewing the drivers of an anonymous computer which may be not the same with your current computer. These driver(s) may not work with your computer. Please click on the link below to download, scan and get the correct drivers.
from Others
Hardware Support
Device name
ID
Cypress EZ-USB (2131Q/2131S/2135S) - EEPROM missing (using ij6_usb1_2601.sys)
USB\VID_0547&PID_2131