Evolution-X-Tensor/device_google_gs101
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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: I29c352696cd9d31168a8eac8c58d23adb484f5d0
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
This commit is contained in:
Kuen-Han Tsai 2023-12-12 14:07:27 +08:00
parent 1819593a37
commit 93d9eb0a8f
1 changed files with 2 additions and 0 deletions
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2
conf/init.gs101.usb.rc
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@ -368,6 +368,8 @@ on boot
write /config/usb_gadget/g1/bcdDevice 0x0510
# 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