iio_backend_ddr_enable(9)
π
iio_backend_ddr_enable β a.k.a. the "make it go double-speed" button
okay so this is a page from the Kernel API Manual, section 9 (that's the kernel-internals girlies β¨). Bestie, we're talking about the iio_backend_ddr_enable(9) function, and honestly? It's giving "small function, big vibes."
πΈ NAME πΈ
iio_backend_ddr_enable β turn on DDR (Double Data Rate) mode for the interface. no cap, that's the whole personality π
β¨ SYNOPSIS β¨
int iio_backend_ddr_enable (struct iio_backend *back);
like, that's it. one arg. we love a low-maintenance icon π
π¦ ARGUMENTS π¦
backβ the backend device. your main character struct, fr fr. that's the thing you're enabling DDR on π
π₯ DESCRIPTION π₯
okay so here's the tea β β this function enables DDR, and the way that works is: the data is generated by the IP at each front (raising and falling) of the bus clock signal. so instead of one edge doing the work, both edges are pulling their weight. teamwork, slay, periodt πβ¨
basically double the edges, double the data. the way that clock signal is booked and busy π°οΈπ
π«Ά RETURN π«Ά
0on success β iconic, we ate π- a negative error number on failure β not iconic, but like, it happens π
π SEE ALSO π
these are the besties in the same friend group, iykyk π§
- Kernel file
./drivers/iio/industrialio-backend.c
and the whole squad, in the order they showed up to the group chat:
iio_backend_debugfs_add(9)iio_backend_debugfs_print_chan_status(9)iio_backend_chan_enable(9)iio_backend_chan_disable(9)iio_backend_disable(9)iio_backend_enable(9)devm_iio_backend_enable(9)iio_backend_data_format_set(9)iio_backend_data_source_set(9)iio_backend_data_source_get(9)iio_backend_set_sampling_freq(9)iio_backend_test_pattern_set(9)iio_backend_chan_status(9)iio_backend_iodelay_set(9)iio_backend_data_sample_trigger(9)devm_iio_backend_request_buffer(9)iio_backend_read_raw(9)iio_backend_ext_info_get(9)iio_backend_ext_info_set(9)iio_backend_interface_type_get(9)iio_backend_data_size_set(9)iio_backend_oversampling_ratio_set(9)iio_backend_extend_chan_spec(9)iio_backend_has_caps(9)iio_backend_filter_type_set(9)iio_backend_interface_data_align(9)iio_backend_num_lanes_set(9)iio_backend_ddr_disable(9)iio_backend_data_stream_enable(9)iio_backend_data_stream_disable(9)iio_backend_data_transfer_addr(9)devm_iio_backend_get(9)devm_iio_backend_get_by_index(9)devm_iio_backend_fwnode_get(9)__devm_iio_backend_get_from_fwnode_lookup(9)iio_backend_get_priv(9)devm_iio_backend_register(9)
π‘ friendly reminder bestie: this page lives under ./drivers/iio β that's where the whole friend group hangs out π
and that's the whole page!! mwah π sourced from ./drivers/iio, dated October 2026, and the page itself is iio_backend_ddr_enable(9) β go enable some DDR and be the main character of that bus clock, bestie ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms