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- What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/fram
- Date: June 2021
- KernelVersion: 5.14
- Contact: Jiri Prchal <[email protected]>
- Description:
- Contains the FRAM binary data. Same as EEPROM, just another file
- name to indicate that it employs ferroelectric process.
- It performs write operations at bus speed - no write delays.
- What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/sernum
- Date: May 2021
- KernelVersion: 5.14
- Contact: Jiri Prchal <[email protected]>
- Description:
- Contains the serial number of the Cypress FRAM (FM25VN) if it is
- present. It will be displayed as a 8 byte hex string, as read
- from the device.
- This is a read-only attribute.
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