tb_lc_dp_sink_alloc(9)

💅 tb_lc_dp_sink_alloc(9) — Kernel API Manual 💅

🌸 NAME 🌸

tb_lc_dp_sink_alloc — Allocate DP sink ✨

✨ SYNOPSIS ✨

Bestie, here's the exact signature — keep it character-for-character:

int tb_lc_dp_sink_alloc (struct tb_switch *sw , struct tb_port *in );

🎀 ARGUMENTS 🎀

• sw — the switch whose DP sink is allocated 🫶
• in — the DP IN port the DP sink is allocated for 💖

🌈 DESCRIPTION 🌈

Okay so this one allocates the DP sink for in via the LC SNK_ALLOCATION registers — that's literally the whole vibe, no cap ✨

🌸 RETURN 🌸

• 0 — if the resource is available and allocation is successful 🎉
• -EBUSY — if the resource is not available 🚫
• Negative errno — another error occurred 😭

🦋 SEE ALSO 🦋

• Kernel file: ./drivers/thunderbolt/lc.c 🫶
• tb_lc_read_uuid(9)
• tb_lc_reset_port(9)
• tb_lc_configure_port(9)
• tb_lc_unconfigure_port(9)
• tb_lc_configure_xdomain(9)
• tb_lc_unconfigure_xdomain(9)
• tb_lc_start_lane_initialization(9)
• tb_lc_is_clx_supported(9)
• tb_lc_is_usb_plugged(9)
• tb_lc_is_xhci_connected(9)
• tb_lc_xhci_connect(9)
• tb_lc_xhci_disconnect(9)
• tb_lc_set_wake(9)
• tb_lc_set_sleep(9)
• tb_lc_lane_bonding_possible(9)
• tb_lc_dp_sink_query(9)
• tb_lc_dp_sink_dealloc(9)
• tb_lc_force_power(9)

— signed with love from source/version vibes: ./drivers/thunderbolt, October 2026 💖