31 lines
1.0 KiB
Plaintext
31 lines
1.0 KiB
Plaintext
What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/fram
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Date: June 2021
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KernelVersion: 5.14
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Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
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Description:
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Contains the FRAM binary data. Same as EEPROM, just another file
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name to indicate that it employs ferroelectric process.
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It performs write operations at bus speed - no write delays.
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What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/sernum
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Date: May 2021
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KernelVersion: 5.14
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Contact: Jiri Prchal <jiri.prchal@aksignal.cz>
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Description:
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Contains the serial number of the Cypress FRAM (FM25VN) if it is
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present. It will be displayed as a 8 byte hex string, as read
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from the device.
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This is a read-only attribute.
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What: /sys/class/spi_master/spi<bus>/spi<bus>.<dev>/jedec_id
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Date: January 2026
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KernelVersion: 6.19
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Contact: Patrick Wicki <patrick.wicki@siemens.com>
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Description:
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Contains the raw JEDEC ID bytes returned by the RDID (0x9f) command. The
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bytes are exposed as a hex string in big-endian order as read from the
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device.
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This is a read-only attribute.
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