openwrt SD卡

export DBGLVL=10; procd -h /etc/hotplug.json
//=======================拔SD卡
[10642.220000] mmc0: card 0001 removed
procd: hotplug_handler_debug(404): {{"ACTION":"remove","DEVPATH":"\/devices\/10130000.sdhci\/mmc_host\/mmc0\/mmc0:0001\/block\/mmcblk0\/mmcblk0p1","SUBSYSTEM":"block","MAJOR":"179","MINOR":"1","DEVNAME":"mmcblk0p1","DEVTYPE":"partition","SEQNUM":"551"}}
procd: rule_handle_command(355): Command: rm
procd: rule_handle_command(357):  /dev/mmcblk0p1
procd: rule_handle_command(358): 
procd: rule_handle_command(360): Message:
procd: rule_handle_command(362):  ACTION=remove
procd: rule_handle_command(362):  DEVPATH=/devices/10130000.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
procd: rule_handle_command(362):  SUBSYSTEM=block
procd: rule_handle_command(362):  MAJOR=179
procd: rule_handle_command(362):  MINOR=1
procd: rule_handle_command(362):  DEVNAME=mmcblk0p1
procd: rule_handle_command(362):  DEVTYPE=partition
procd: rule_handle_command(362):  SEQNUM=551
procd: rule_handle_command(363): 
procd: rule_handle_command(355): Command: exec
procd: rule_handle_command(357):  /sbin/hotplug-call
procd: rule_handle_command(357):  block
procd: rule_handle_command(358): 
procd: rule_handle_command(360): Message:
procd: rule_handle_command(362):  ACTION=remove
remove（脚本执行）
procd: rule_handle_command(362):  DEVPATH=/devices/10130000.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
procd: rule_handle_command(362):  SUBSYSTEM=block
procd: rule_handle_command(362):  MAJOR=179
procd: rule_handle_command(362):  MINOR=1
procd: rule_handle_command(362):  DEVNAME=mmcblk0p1
procd: rule_handle_command(362):  DEVTYPE=partition