From 84128834583cb62308d1daddc3ebb1fbc538cce2 Mon Sep 17 00:00:00 2001 From: Kuen-Han Tsai Date: Tue, 12 Dec 2023 13:39:21 +0800 Subject: [PATCH] usb: enable media-presence polling for SD cards After USB enumeration, some SD card readers do not send signals to the device when the SD card is inserted or removed. To support SD card hotplugging, this patch enables in-kernel media-presence polling, which will check the SD card status every 2 seconds after a SD card reader is attached. Bug: 186479576 Test: SD card insertion/removal and data copy (see b/301566595) Change-Id: Ibd7816b717d2fbcb038a7c0ff703b7fab7d2a46c Signed-off-by: Kuen-Han Tsai --- conf/init.gs201.usb.rc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/conf/init.gs201.usb.rc b/conf/init.gs201.usb.rc index 6a52fb07..9ba9eb8a 100644 --- a/conf/init.gs201.usb.rc +++ b/conf/init.gs201.usb.rc @@ -371,6 +371,8 @@ on boot write sys/module/usbcore/parameters/initial_descriptor_timeout 500 # Use USB Gadget HAL setprop sys.usb.configfs 2 + # Enable in-kernel media-presence polling for SD cards + write /sys/module/block/parameters/events_dfl_poll_msecs 2000 on property:sys.usb.ffs.ready=1 && property:sys.usb.config=adb && property:sys.usb.configfs=1 write /config/usb_gadget/g1/idProduct 0x4EE7