zynqmp_qspi_chipselect(9)
π zynqmp_qspi_chipselect β a Kernel API Manual moment β¨
okay bestie, welcome to the Kernel API Manual page for zynqmp_qspi_chipselect(9) β and yes it's literally as niche as it sounds, but it's iconic in its own little way π
πΈ NAME πΈ
zynqmp_qspi_chipselect β the girl whose whole job is selecting or deselecting the chip select line. that's it. that's the gig. π
β¨ SYNOPSIS β¨
void zynqmp_qspi_chipselect (struct spi_device *qspi , bool is_high );
no cap, that's the entire signature. void return, two arguments, main character energy π¦
π«Ά ARGUMENTS π«Ά
qspiβ a pointer to thespi_devicestructure. think of it as the lil handle to the device you're out here chip-selecting πis_highβ okay so this is the vibe check of the whole function:Select(0)or deselect(1)the chip select line. yes, it's a bool doing double duty as a mood ring π₯
lowkey iconic that0means select and1means deselect β not me double-checking that every single time π
π SEE ALSO π
bestie there is so much more lore where this came from. the kernel file is ./drivers/spi/spi-zynqmp-gqspi.c, and here's the whole friend group:
- struct
qspi_platform_data(9) - struct
zynqmp_qspi(9) zynqmp_gqspi_read(9)zynqmp_gqspi_write(9)zynqmp_gqspi_selecttarget(9)zynqmp_qspi_set_tapdelay(9)zynqmp_qspi_init_hw(9)zynqmp_qspi_copy_read_data(9)zynqmp_qspi_selectspimode(9)zynqmp_qspi_config_op(9)zynqmp_qspi_setup_op(9)zynqmp_qspi_filltxfifo(9)zynqmp_qspi_readrxfifo(9)zynqmp_qspi_fillgenfifo(9)zynqmp_qspi_disable_dma(9)zynqmp_qspi_enable_dma(9)zynqmp_process_dma_irq(9)zynqmp_qspi_irq(9)zynqmp_qspi_setuprxdma(9)zynqmp_qspi_write_op(9)zynqmp_qspi_read_op(9)zynqmp_qspi_suspend(9)zynqmp_qspi_resume(9)zynqmp_runtime_suspend(9)zynqmp_runtime_resume(9)zynqmp_qspi_exec_op(9)zynqmp_qspi_probe(9)zynqmp_qspi_remove(9)
like, that's a whole group chat and zynqmp_qspi_chipselect is just one member of it π§ββοΈ
and that's the page!! source lives in ./drivers/spi, dated October 2026, and it's zynqmp_qspi_chipselect(9) forever and always ππ slay, go select a chip (or don't β pass 1), iykyk β¨
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