0001 What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/fram
0002 Date: June 2021
0003 KernelVersion: 5.14
0004 Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
0005 Description:
0006 Contains the FRAM binary data. Same as EEPROM, just another file
0007 name to indicate that it employs ferroelectric process.
0008 It performs write operations at bus speed - no write delays.
0009
0010 What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/sernum
0011 Date: May 2021
0012 KernelVersion: 5.14
0013 Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
0014 Description:
0015 Contains the serial number of the Cypress FRAM (FM25VN) if it is
0016 present. It will be displayed as a 8 byte hex string, as read
0017 from the device.
0018
0019 This is a read-only attribute.
