img_ir_timing_range_convert(9)

🦋 img_ir_timing_range_convert(9) 🦋

okay so bestie, this page is from the Kernel API Manual, and it’s giving “tiny iconic helper function” energy. No cap, it’s literally here to convert a microsecond range and make it make sense. ✨

💖 NAME 💖

img_ir_timing_range_convert — Convert microsecond range. periodt 💅

✨ SYNOPSIS ✨

void img_ir_timing_range_convert (struct img_ir_timing_range *out , const struct img_ir_timing_range *in , unsigned int tolerance , unsigned long clock_hz , unsigned int shift );

🎀 ARGUMENTS 🎀

• out — Output timing range in clock cycles with a shift. She’s the destination, bestie.
• in — Input timing range in microseconds. The source vibe.
• tolerance — Tolerance as a fraction of 128 (roughly percent). Yes, 128 is the magic fraction number here.
• clock_hz — IR clock rate in Hz. That’s the clock speed setting.
• shift — Shift of output units. It shifts the output units, iykyk.

💅 DESCRIPTION 💅

okay so this function converts min and max from microseconds to IR clock cycles, applies a tolerance, and shifts for the register — rounding in the right direction. It’s literally doing the convert-and-shift-and-round combo, and it ate. 🔥

And the iconic part? in and out can safely be the same object. So no need to panic about aliasing here, bestie. 🫶

👑 SEE ALSO 👑

The kernel file is ./drivers/media/rc/img-ir/img-ir-hw.c, and the whole squad is:

• img_ir_control(9)
• img_ir_symbol_timing(9)
• img_ir_free_timing(9)
• img_ir_free_timing_dynamic(9)
• img_ir_timings_convert(9)
• img_ir_decoder_preprocess(9)
• img_ir_decoder_convert(9)
• img_ir_write_timings(9)
• img_ir_set_decoder(9)
• img_ir_decoder_compatible(9)
• img_ir_allowed_protos(9)
• img_ir_enable_wake(9)
• img_ir_disable_wake(9)
• img_ir_probe_hw_caps(9)

mwah 💋 this cutie is signed off from ./drivers/media/rc/img-ir and dated October 2026. bye bestie, slay your timings! 💖