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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: I46ebaa4321d0e7bfbc048910ff8cc72e8e4f9a92
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
This commit is contained in:
Kuen-Han Tsai 2023-12-12 14:14:40 +08:00
parent 8a15203216
commit 9fa4ab5163
1 changed files with 3 additions and 1 deletions
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4
conf/init.zumapro.usb.rc
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@ -153,6 +153,8 @@ on early-boot
on boot
# 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
@ -199,4 +201,4 @@ on property:persist.vendor.usb.displayport.enabled=1
on property:persist.vendor.usb.displayport.enabled=0
write /sys/module/exynos_drm/parameters/dp_enabled 0
write /sys/class/typec/port0/port0.0/mode1/active "no"
write /sys/class/typec/port0/port0.0/mode1/active "no"