rio_inb_pwrite_handler(9)
π rio_inb_pwrite_handler(9) β the inbound port-write message handler, bestie
okay so like, welcome to the Kernel API Manual β¨ we're talking about rio_inb_pwrite_handler, and honestly? she's a whole vibe. little function, big job. let's get into it π«Ά
πΈ SYNOPSIS πΈ
int rio_inb_pwrite_handler (struct rio_mport *mport , union rio_pw_msg
*pw_msg );
that's it. that's the whole signature. she's compact, she's iconic, she takes two arguments and hands you back an int π
π ARGUMENTS π
mportβ the mport device that's associated with the port-write. like, which mport are we even talking about, y'know? this one. πpw_msgβ a pointer to the inbound port-write message itself. the actual message. the main character of the whole operation, ngl π
π¦ DESCRIPTION π¦
so what does she do? she processes an inbound port-write message. that's the tea β literally that's the function. and if the request has been satisfied, she returns 0 β clean, simple, no drama, periodt π₯
no cap, sometimes the best functions are the ones that just... do the thing and return 0. we stan a low-maintenance queen π
π SEE ALSO π
okay this section is long, so buckle up bestie, we're going on a journey ππ¨ the kernel file here is ./drivers/rapidio/rio.c, and here's every single friend in the group chat:
rio_local_get_device_id(9)rio_query_mport(9)rio_alloc_net(9)rio_local_set_device_id(9)rio_add_device(9)rio_request_inb_mbox(9)rio_release_inb_mbox(9)rio_request_outb_mbox(9)rio_release_outb_mbox(9)rio_setup_inb_dbell(9)rio_request_inb_dbell(9)rio_release_inb_dbell(9)rio_request_outb_dbell(9)rio_release_outb_dbell(9)rio_add_mport_pw_handler(9)rio_del_mport_pw_handler(9)rio_request_inb_pwrite(9)rio_release_inb_pwrite(9)rio_pw_enable(9)rio_map_inb_region(9)rio_unmap_inb_region(9)rio_map_outb_region(9)rio_unmap_outb_region(9)rio_mport_get_physefb(9)rio_get_comptag(9)rio_set_port_lockout(9)rio_enable_rx_tx_port(9)rio_chk_dev_route(9)rio_mport_chk_dev_access(9)rio_chk_dev_access(9)rio_get_input_status(9)rio_clr_err_stopped(9)rio_mport_get_efb(9)rio_mport_get_feature(9)rio_std_route_add_entry(9)rio_std_route_get_entry(9)rio_std_route_clr_table(9)rio_lock_device(9)rio_unlock_device(9)rio_route_add_entry(9)rio_route_get_entry(9)rio_route_clr_table(9)rio_request_mport_dma(9)rio_release_dma(9)rio_dma_prep_xfer(9)rio_register_scan(9)rio_mport_scan(9)
like I said. a lot of friends. iykyk π but every single one of them is listed up there, so go read them if you're curious, bestie π§
ngl this page is short and sweet β but that's the point. she handles the inbound port-write, she returns 0 when the request is satisfied, and she minds her business π
that's the whole page!! mwah π sourced straight from ./drivers/rapidio, dated October 2026, and yeah β that's genuinely the version and date, i'm not making it up, promise πβ bye bestie, go read some more rio_* functions 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