tvp514x_detect(9)

🎀 NAME 🎀

okay bestie, this is tvp514x_detect(9) from the Kernel API Manual — the little function that checks if an tvp514x is present, and if so which revision. 💅

tvp514x_detect - Detect if an tvp514x is present, and if so which revision. ✨

🌈 SYNOPSIS 🌈

the whole signature is giving:

       int tvp514x_detect (struct v4l2_subdev *sd , struct tvp514x_decoder
       *decoder );

💖 ARGUMENTS 💖

two pointers, both iconic:

• sd — pointer to standard V4L2 sub-device structure
• decoder — pointer to tvp514x_decoder structure

✨ DESCRIPTION ✨

okay so here’s the tea: a device is considered to be detected if the chip ID (LSB and MSB) registers match the expected values. 🫶 Any value of the rom version register is accepted — literally any value, bestie, no vibe check needed there. 👑

If no device is detected, it returns the ENODEV error number. If a device is detected, it returns zero. that’s it, that’s the whole arc. 💀

🌸 SEE ALSO 🌸

go touch grass in these files and functions, iykyk:

• Kernel file ./drivers/media/i2c/tvp514x.c
• struct tvp514x_std_info(9)
• struct tvp514x_decoder(9)
• tvp514x_read_reg(9)
• dump_reg(9)
• tvp514x_write_reg(9)
• tvp514x_write_regs(9)
• tvp514x_query_current_std(9)
• tvp514x_configure(9)
• tvp514x_querystd(9)
• tvp514x_s_std(9)
• tvp514x_s_routing(9)

mwah 💋 cute sign-off: source/version ./drivers/media/i2c, date October 2026, and the page is tvp514x_detect(9). byeee, go detect something iconic 🫶🌈