timed_wait_for_timeout(9)

💅 timed_wait_for_timeout(9) — like, the Kernel API Manual entry, bestie ✨

okay so we're in the Kernel API Manual today and the main character is timed_wait_for_timeout(9). she waits. she times out. she serves. 🎀

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✨ NAME ✨

timed_wait_for_timeout — wait for a special event, but with a timeout 💀

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🌸 SYNOPSIS 🌸

int timed_wait_for_timeout (struct ishtp_device *dev , int condition ,
       unsigned int timeinc , unsigned int timeout );

like literally that's the whole signature, no cap 🫶

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🦋 ARGUMENTS 🦋

• dev — the ISHTP device pointer, aka the lil handle to the device we're obsessing over 💖
• condition — tells us what condition we're waiting on, iykyk 👀
• timeinc — the time slice for every wait cycle, in ms ⏱️
• timeout — the time in ms before we give up and call it a timeout 😭

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👑 DESCRIPTION 👑

so this function checks a special event to see if it's ready — in a loop, bestie 🔁. the loop period is specified in timeinc. and if the wait hits the timeout? that's a failure, periodt. 💀✨

ngl the whole vibe is "keep checking, but don't check forever." main character energy with boundaries. 🧚

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⭐ RETURN ⭐

0 for success — slay 💅 — else a failure code 🙈

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🌈 SEE ALSO 🌈

the kernel file ./drivers/hid/intel-ish-hid/ipc/ipc.c and honestly, the whole friend group 🫶:

• ish_reg_read(9)
• ish_reg_write(9)
• _ish_read_fw_sts_reg(9)
• check_generated_interrupt(9)
• ish_is_input_ready(9)
• set_host_ready(9)
• ishtp_fw_is_ready(9)
• ish_set_host_rdy(9)
• ish_clr_host_rdy(9)
• ish_set_host_ready(9)
• _ishtp_read_hdr(9)
• _ishtp_read(9)
• write_ipc_from_queue(9)
• write_ipc_to_queue(9)
• ipc_send_mng_msg(9)
• ish_fw_reset_handler(9)
• fw_reset_work_fn(9)
• _ish_sync_fw_clock(9)
• recv_ipc(9)
• ish_irq_handler(9)
• ish_disable_dma(9)
• ish_wakeup(9)
• _ish_hw_reset(9)
• _ish_ipc_reset(9)
• ish_hw_start(9)
• ish_ipc_get_header(9)
• _dma_no_cache_snooping(9)
• ish_dev_init(9)
• ish_device_disable(9)

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okay and the cute lil sign-off: this page lives in ./drivers/hid/intel-ish-hid/ipc and it's dated October 2026. she's from the future, she's iconic, she's timed_wait_for_timeout(9). bye bestie, drink some water 💜🌸