of_property_count_strings(9)

💖 of_property_count_strings(9) 💖

okay so bestie, this is a page from the Kernel API Manual — it's about of_property_count_strings, and it lives right in ./include/linux. Let's get into it ✨

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🌸 NAME 🌸

of_property_count_strings — find and return the number of strings from a multiple strings property. that's it, that's the whole job, and it does it flawlessly 💅

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✨ SYNOPSIS ✨

int of_property_count_strings (const struct device_node *np , const char *propname );

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🎀 ARGUMENTS 🎀

• np — the device node from which the property value is to be read. like, this is the node we're snooping in 🕵️‍♀️
• propname — name of the property to be searched. the thing you're looking for, bestie 🔍

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🦋 DESCRIPTION 🦋

So what it does: it searches for a property in a device tree node and retrieves the number of null terminated strings contained in it. that's literally the whole vibe — you point it at a node and a property name, and it counts the strings for you 🫶

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🎯 RETURN 🎯

• the number of strings on success — slay 👑
• -EINVAL if the property does not exist
• -ENODATA if property does not have a value
• -EILSEQ if the string is not null-terminated within the length of the property data

ngl those error codes are your vibe check 💀 if you get one, the property isn't giving what you thought it was giving.

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🌈 SEE ALSO 🌈

Kernel file ./include/linux/of.h, plus all of these icons:

• of_node_init(9)
• of_machine_is_compatible(9)
• of_parse_phandle(9)
• of_parse_phandle_with_args(9)
• of_parse_phandle_with_fixed_args(9)
• of_parse_phandle_with_optional_args(9)
• of_phandle_args_equal(9)
• of_property_count_u8_elems(9)
• of_property_count_u16_elems(9)
• of_property_count_u32_elems(9)
• of_property_count_u64_elems(9)
• of_property_read_string_array(9)
• of_property_read_string_index(9)
• of_property_present(9)
• of_property_read_u8_array(9)
• of_property_read_u16_array(9)
• of_property_read_u32_array(9)
• of_property_read_u64_array(9)
• struct of_changeset_entry(9)
• struct of_changeset(9)
• of_device_is_system_power_controller(9)
• of_have_populated_dt(9)

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and that's the whole page 🧚💜 this icon came from ./include/linux, dated October 2026, and it's officially titled of_property_count_strings(9) — mwah, bye bestie! 🍓💅✨