cs_dsp_adsp2_bus_error(9)
π cs_dsp_adsp2_bus_error(9) π
okay bestie, so this is a page from the Kernel API Manual and honestly? it's a little one but it's a cutie. it's giving "small but essential", ykwim? let's get into it π«Ά
β¨ NAME β¨
cs_dsp_adsp2_bus_error β it handles a DSP bus error interrupt π like, that's its whole job. no cap, that's it.
πΈ SYNOPSIS πΈ
void cs_dsp_adsp2_bus_error (struct cs_dsp *dsp );
that's the whole signature bestie. returns void, takes one pointer, absolutely iconic of it β¨
π¦ ARGUMENTS π¦
dspβ pointer to DSP structure π that's it, that's the only thing she needs. one (1) pointer and she's off to the races.
π DESCRIPTION π
okay so here's the tea β β when this gets called, the firmware and DSP state will be logged for future analysis. that's the entire description, and honestly? she ate. it's short, it's clear, it does not waste your time.
it's literally just: catch the bus error vibe, dump the firmware state, dump the DSP state, save it all so somebody smarter (or future you π) can go figure out what went wrong later. detective work energy π₯
this is an interrupt handler bestie β it's not out here fixing anything, it's out here recording things. logging now, solving later, that's the motto π
π SEE ALSO π
okay this is the part where the manpage really shows off, because the cross-reference list is long and I'm obsessed π go read these, they're literally right there:
- the kernel file:
./drivers/firmware/cirrus/cs_dsp.cποΈ cs_dsp_mem_region_name(9)cs_dsp_init_debugfs(9)cs_dsp_cleanup_debugfs(9)cs_dsp_coeff_write_acked_control(9)cs_dsp_coeff_write_ctrl(9)cs_dsp_coeff_lock_and_write_ctrl(9)cs_dsp_coeff_read_ctrl(9)cs_dsp_coeff_lock_and_read_ctrl(9)cs_dsp_hibernate(9)cs_dsp_get_ctl(9)cs_dsp_find_alg_region(9)cs_dsp_adsp1_init(9)cs_dsp_adsp1_power_up(9)cs_dsp_adsp1_power_down(9)cs_dsp_set_dspclk(9)cs_dsp_power_up(9)cs_dsp_power_down(9)cs_dsp_run(9)cs_dsp_stop(9)cs_dsp_adsp2_init(9)cs_dsp_halo_init(9)cs_dsp_remove(9)cs_dsp_read_raw_data_block(9)cs_dsp_read_data_word(9)cs_dsp_write_data_word(9)cs_dsp_remove_padding(9)cs_dsp_halo_bus_error(9)cs_dsp_halo_wdt_expire(9)cs_dsp_chunk_write(9)cs_dsp_chunk_flush(9)cs_dsp_chunk_read(9)cs_dsp_wseq_init(9)cs_dsp_wseq_write(9)cs_dsp_wseq_multi_write(9)
okay that's the whole page bestie, we're done here π and before you go β cute lil sign-off moment: this masterpiece lives in the source directory ./drivers/firmware/cirrus, and it's dated October 2026 β so yeah, future-proof queen. mwah π slay, stan, and always read your kernel docs π§π
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