The Cypress EZ-USB (2131Q, 2131S, 2135S) refers to a series of USB controller chips developed by Cypress Semiconductor, commonly used in embedded systems and devices that require USB connectivity, such as printers, external drives, and specialized hardware. These chips are part of the EZ-USB FX2/FX3 family, which supports USB 2.0 and sometimes includes EEPROM (Electrically Erasable Programmable Read-Only Memory) for storing configuration data.
The error message you're encountering, "EEPROM missing", likely indicates that the system is attempting to communicate with the Cypress USB chip, but it's either not detecting the EEPROM on the device or is having trouble loading the appropriate configuration data from it.
The specific driver you mentioned, ij6_usb1_1004sys, may be related to a particular hardware interface or application (possibly a printer or scanner), and the issue is likely stemming from a driver incompatibility or misconfiguration.
Cypress EZ-USB (2131Q/2131S/2135S) - EEPROM missing (using ij6_usb1_1004.sys) drivers / FUJITSU ESPRIMO P
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
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