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.