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nvmem: Document type attribute

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Document a type attribute used by userspace to discern different types of
NVMEM devices. The implementation is already present, the ABI document is
missing, add it.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240705074852.423202-14-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marek Vasut 2024-07-05 08:48:50 +01:00 committed by Greg Kroah-Hartman
parent ac871d6bd8
commit a5f65c7735
1 changed files with 11 additions and 0 deletions
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Documentation/ABI/stable/sysfs-bus-nvmem
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@ -20,3 +20,14 @@ Description:
...
*
0001000
What: /sys/bus/nvmem/devices/.../type
Date: November 2018
KernelVersion: 5.0
Contact: Alexandre Belloni <alexandre.belloni@bootlin.com>
Description:
This read-only attribute allows user to read the NVMEM
device type. Supported types are "Unknown", "EEPROM",
"OTP", "Battery backed", "FRAM".
Note: This file is only present if CONFIG_NVMEM_SYSFS
is enabled.