zynq_qspi_setup_op(9)
π zynq_qspi_setup_op(9) β a Kernel API Manual moment
okay bestie, welcome to the Kernel API Manual, and today's main character is zynq_qspi_setup_op. She's a kernel function, she configures a QSPI controller, and she's about to make your whole SPI transfer situation make sense. let's go π
β¨ NAME β¨
zynq_qspi_setup_op β literally just: configure the QSPI controller. that's her whole job, and she does it. π
πΈ SYNOPSIS πΈ
int zynq_qspi_setup_op (struct spi_device *spi );
π¦ ARGUMENTS π¦
spiβ a pointer to thespi_devicestructure. yes, that's the one. she needs it. don't be weird about it π«Ά
β DESCRIPTION β
so here's the vibe: zynq_qspi_setup_op sets the operational mode of the QSPI controller for the next QSPI transfer. like, it's prepping the runway for the flight that's about to take off βοΈβ¨
it also handles the baud rate and the divisor value, all so it can set up the requested QSPI clock. basically: modes, timing, clock β she's got the whole fit coordinated, head to toe. no cap. π
π₯ RETURN π₯
0on success β slay, we love a zero π- an error value on failure β π not the error values, but okay, that's what happens, so you gotta handle it fr fr
π SEE ALSO π
like, go read the whole friend group honestly:
- Kernel file
./drivers/spi/spi-zynq-qspi.c struct zynq_qspi(9)zynq_qspi_init_hw(9)zynq_qspi_rxfifo_op(9)zynq_qspi_txfifo_op(9)zynq_qspi_chipselect(9)zynq_qspi_config_op(9)zynq_qspi_write_op(9)zynq_qspi_read_op(9)zynq_qspi_irq(9)zynq_qspi_exec_mem_op(9)zynq_qspi_probe(9)zynq_qspi_remove(9)
they're all in ./drivers/spi together, it's giving iconic little family reunion π§π¦
π reminder bestie: this page is from the Kernel API Manual, so if you're reading it somewhere weird, that's between you and the kernel.
and that's the page!! π brought to you by ./drivers/spi, dated October 2026 β shoutout to the source and the date, holding it down at the very bottom like the faithful footer icons they are πβ¨ bye bestie, go configure something 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