zynqmp_qspi_filltxfifo(9)
π zynqmp_qspi_filltxfifo(9) π
okay so this is a page straight out of the Kernel API Manual (yes, that Kernel API Manual π), and it's all about one tiny little function that lives its whole life doing one job. iconic honestly. let's get into it bestie β¨
πΈ NAME πΈ
zynqmp_qspi_filltxfifo β Fills the TX FIFO as long as there is room in the FIFO or the bytes required to be transmitted.
like, that's the whole job. it fills the FIFO. it keeps filling it. it stops when there's no room or when it's done the bytes. periodt π
β¨ SYNOPSIS β¨
void zynqmp_qspi_filltxfifo (struct zynqmp_qspi *xqspi , int size );
returns nothing (void, she's giving minimal effort and honestly? valid) and takes two things. scroll down for the deets π«Ά
π¦ ARGUMENTS π¦
xqspiβ Pointer to thezynqmp_qspistructure. it's the main character of this whole operation, no cap πsizeβ Number of bytes to be copied from TX buffer to TX FIFO. literally just how many bytes we're moving, that's it, that's the number π
π SEE ALSO π
okay this is the part where the man page goes absolutely feral with cross-references, and we are NOT skipping a single one. every link stays, bestie, i said what i said π
Kernel file ./drivers/spi/spi-zynqmp-gqspi.c, plus:
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_chipselect(9)zynqmp_qspi_selectspimode(9)zynqmp_qspi_config_op(9)zynqmp_qspi_setup_op(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)
go read them all. i'll wait. π§
ngl this page has zero warnings, zero bugs, zero exit statuses, zero environment variables, and zero examples β and that's not me being lazy, that's just literally what's in here. we're keeping it 100. π
that's the whole page bestie, mwah π
this little gem came from ./drivers/spi, dated October 2026, and shows up in the Kernel API Manual as zynqmp_qspi_filltxfifo(9) β slay, go fill that FIFO β¨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