1 What: /sys/class/spi_master/spi<bus> 1 What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/fram
2 Date: June 2021 2 Date: June 2021
3 KernelVersion: 5.14 3 KernelVersion: 5.14
4 Contact: Jiri Prchal <jiri.prchal@aksign 4 Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
5 Description: 5 Description:
6 Contains the FRAM binary data. Same as 6 Contains the FRAM binary data. Same as EEPROM, just another file
7 name to indicate that it employs ferro 7 name to indicate that it employs ferroelectric process.
8 It performs write operations at bus sp 8 It performs write operations at bus speed - no write delays.
9 9
10 What: /sys/class/spi_master/spi<bus> 10 What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/sernum
11 Date: May 2021 11 Date: May 2021
12 KernelVersion: 5.14 12 KernelVersion: 5.14
13 Contact: Jiri Prchal <jiri.prchal@aksign 13 Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
14 Description: 14 Description:
15 Contains the serial number of the Cypr 15 Contains the serial number of the Cypress FRAM (FM25VN) if it is
16 present. It will be displayed as a 8 16 present. It will be displayed as a 8 byte hex string, as read
17 from the device. 17 from the device.
18 18
19 This is a read-only attribute. 19 This is a read-only attribute.
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