Evolution-X-Tensor/device_google_gs201
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usb: enable media-presence polling for SD cards

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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 <khtsai@google.com>
This commit is contained in:
Kuen-Han Tsai 2023-12-12 13:39:21 +08:00
parent 6fa3ccb524
commit 8412883458
1 changed files with 2 additions and 0 deletions
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2
conf/init.gs201.usb.rc
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@ -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