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linux/Documentation/ABI/testing/sysfs-bus-spi-devices-spi-nor
JaimeLiao fc2efaf90a
mtd: spi-nor: sysfs: hide the flash name if not set
The flash name is not reliable as we saw flash ID collisions.
Hide the flash name if not set.

Signed-off-by: JaimeLiao <jaimeliao@mxic.com.tw>
Reviewed-by: Michael Walle <michael@walle.cc>
[ta: update commit subject and description and the sysfs description]
Link: https://lore.kernel.org/r/20231215082138.16063-4-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
2023-12-19 05:08:23 +02:00

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1.3 KiB
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What: /sys/bus/spi/devices/.../spi-nor/jedec_id
Date: April 2021
KernelVersion: 5.14
Contact: linux-mtd@lists.infradead.org
Description: (RO) The JEDEC ID of the SPI NOR flash as reported by the
flash device.
The attribute is not present if the flash doesn't support
the "Read JEDEC ID" command (9Fh). This is the case for
non-JEDEC compliant flashes.
What: /sys/bus/spi/devices/.../spi-nor/manufacturer
Date: April 2021
KernelVersion: 5.14
Contact: linux-mtd@lists.infradead.org
Description: (RO) Manufacturer of the SPI NOR flash.
The attribute is not present if the flash device isn't
known to the kernel and is only probed by its SFDP
tables.
What: /sys/bus/spi/devices/.../spi-nor/partname
Date: April 2021
KernelVersion: 5.14
Contact: linux-mtd@lists.infradead.org
Description: (RO) Part name of the SPI NOR flash.
The attribute is optional. User space should not rely on
it to be present or even correct. Instead, user space
should read the jedec_id attribute.
What: /sys/bus/spi/devices/.../spi-nor/sfdp
Date: April 2021
KernelVersion: 5.14
Contact: linux-mtd@lists.infradead.org
Description: (RO) This attribute is only present if the SPI NOR flash
device supports the "Read SFDP" command (5Ah).
If present, it contains the complete SFDP (serial flash
discoverable parameters) binary data of the flash.