(13.04) PowerTOP 報告 USB2.0-CRW 大量使用，但自動掛起已開啟

Question

以前我可以在沒有 WLAN 的情況下將功耗保持在 10 瓦以下，但現在這種情況很少發生。 PowerTOP 一直報導的原因之一可能是這樣的：

Power est.              Usage       Events/s    Category       Description
8.69 W    100.0%                      Device         USB device: USB2.0-CRW (Generic)

這特別奇怪，因為此設定是在可調參數中啟用的（透過 TLP）：

   Good          Autosuspend for USB device USB2.0-CRW [Generic]

有什麼方法可以a）準確地告訴這是哪個設備/驅動程序，b）在啟動時永久禁用它，以確保它不消耗任何電量？

如果有幫助，這是我的 lsusb 輸出：

Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 5986:0292 Acer, Inc 
Bus 002 Device 003: ID 0489:e00d Foxconn / Hon Hai Broadcom Bluetooth 2.1 Device
Bus 002 Device 004: ID 0bda:0139 Realtek Semiconductor Corp. Card reader

以下是 tlp-stat 輸出中的 USB 部分：

+++ USB
tlp usb autosuspend = enabled
tlp usb blacklist   = (not configured)

Bus 001 Device 002 ID 8087:0024 control = auto, autosuspend_delay_ms =  2000 -- Intel     Corp. Integrated Rate Matching Hub (hub)
Bus 002 Device 002 ID 8087:0024 control = auto, autosuspend_delay_ms =  2000 -- Intel Corp. Integrated Rate Matching Hub (hub)
Bus 001 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =  2000 -- Linux Foundation 2.0 root hub (hub)
Bus 002 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =  2000 -- Linux Foundation 2.0 root hub (hub)
Bus 001 Device 003 ID 5986:0292 control = auto, autosuspend_delay_ms =  2000 -- Acer, Inc  (uvcvideo)
Bus 002 Device 003 ID 0489:e00d control = auto, autosuspend_delay_ms =  2000 -- Foxconn / Hon Hai Broadcom Bluetooth 2.1 Device (btusb)
Bus 002 Device 004 ID 0bda:0139 control = auto, autosuspend_delay_ms =  2000 -- Realtek Semiconductor Corp. Card reader (rts5139)