rc_validate_filter(9)

💖 rc_validate_filter(9) 💖

okay bestie, so this one's from the Kernel API Manual, section 9, and it's literally the vibe-check bouncer for remote control filters. yes, that rc_validate_filter. let's get into it 🫶

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✨ NAME ✨

rc_validate_filter — checks that the scancode and mask are valid and provides sensible defaults 💅

like, it's the friend who looks at your outfit before you leave the house and goes "mm, this mask is not it, let me fix it for you."

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🌸 SYNOPSIS 🌸

int rc_validate_filter (struct rc_dev *dev , struct rc_scancode_filter *filter );

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🎀 ARGUMENTS 🎀

• dev — the struct rc_dev descriptor of the device. that's the device's whole little ID card, the main character itself 👑
• filter — the scancode and mask. the actual combo you're trying to pull 🔥

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🦋 RETURN 🦋

0 on success, or -EINVAL if the filter is not valid 😭 like if it flops the check it's giving invalid-argument energy and you get -EINVAL back, no cap.

fr fr: 0 = slay, -EINVAL = not valid, go home.

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🌈 SEE ALSO 🌈

all the siblings in the kernel file ./drivers/media/rc/rc-main.c, and the whole squad:

• scancode_to_u64(9)
• ir_create_table(9)
• ir_free_table(9)
• ir_resize_table(9)
• ir_update_mapping(9)
• ir_establish_scancode(9)
• ir_setkeycode(9)
• ir_setkeytable(9)
• ir_lookup_by_scancode(9)
• ir_getkeycode(9)
• rc_g_keycode_from_table(9)
• ir_do_keyup(9)
• rc_keyup(9)
• ir_timer_keyup(9)
• ir_timer_repeat(9)
• rc_repeat(9)
• ir_do_keydown(9)
• rc_keydown(9)
• rc_keydown_notimeout(9)
• rc_validate_scancode(9)
• struct rc_filter_attribute(9)
• show_protocols(9)
• parse_protocol_change(9)
• store_protocols(9)
• show_filter(9)
• store_filter(9)
• show_wakeup_protocols(9)
• store_wakeup_protocols(9)

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anyway, that's the whole thing 💜 this lil page lives in ./drivers/media/rc and it's stamped October 2026 — so like, future-dated but already iconic. go validate those filters, bestie, you've got this ⭐🧚‍♀️💅