dfh_find_param(9)

💅 dfh_find_param(9) — like, the whole vibe ✨

okay so this is a page from the Kernel API Manual (yes, the big serious kernel one, we're being fancy today 🎀) and it's about dfh_find_param, which is literally the little helper that goes and finds a parameter block for you when you hand it a parameter id. bestie, it's a lookup function. that's the whole personality. and honestly? iconic.

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✨ NAME ✨

dfh_find_param — find the parameter block for the given parameter id 🦋

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🌸 SYNOPSIS 🌸

void * dfh_find_param (struct dfl_device *dfl_dev , int param_id ,
       size_t *psize );

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🎀 ARGUMENTS 🎀

• dfl_dev — the dfl device 💖 like, the one you're digging around in.
• param_id — the id of the dfl parameter you're hunting for 🔍
• psize — the destination where the size of the parameter data gets stored, in bytes 📏 (yes, bytes, we measure in bytes here).

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👑 RETURN 👑

you get back a pointer to the start of the parameter data 💫 and if it doesn't work out? it's giving PTR_ERR instead. that's it, that's the deal 🫶

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🌈 SEE ALSO 🌈

okay this list is long but we do not skip, we do not skim, we list every single one because that's the energy 🔥

• Kernel file ./drivers/fpga/dfl.c (the source file bestie, the whole thing lives there)
• struct dfl_dev_info(9)
• struct dfl_chardev_info(9)
• dfl_fpga_port_ops_get(9)
• dfl_fpga_port_ops_put(9)
• dfl_fpga_port_ops_add(9)
• dfl_fpga_port_ops_del(9)
• dfl_fpga_check_port_id(9)
• dfl_fpga_dev_feature_uinit(9)
• dfl_fpga_dev_feature_init(9)
• dfl_fpga_dev_ops_register(9)
• dfl_fpga_dev_ops_unregister(9)
• struct build_feature_devs_info(9)
• struct dfl_feature_info(9)
• parse_feature(9)
• dfl_fpga_enum_info_add_dfl(9)
• dfl_fpga_enum_info_add_irq(9)
• dfl_fpga_feature_devs_enumerate(9)
• dfl_fpga_feature_devs_remove(9)
• __dfl_fpga_cdev_find_port_data(9)
• dfl_fpga_cdev_release_port(9)
• dfl_fpga_cdev_assign_port(9)
• dfl_fpga_cdev_config_ports_pf(9)
• dfl_fpga_cdev_config_ports_vf(9)
• dfl_fpga_set_irq_triggers(9)
• dfl_feature_ioctl_get_num_irqs(9)
• dfl_feature_ioctl_set_irq(9)

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periodt 💅 that's the whole page. go find your params, bestie, you got this 🧚

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and that's a wrap, my love 💜 this one came straight out of ./drivers/fpga, dated October 2026, and it's filed under dfh_find_param(9) — slay, stan, see you in the next manpage 🌟