IT Solutions Technology Blog

root@bpi-iot-jsho-rslsync-01:~#
root@bpi-iot-jsho-rslsync-01:~# cd /sys/block/mmcblk0/device
root@bpi-iot-jsho-rslsync-01:/sys/block/mmcblk0/device# grep -r . * 2>/dev/null
block/mmcblk0/range:8
block/mmcblk0/capability:0
block/mmcblk0/diskseq:13
block/mmcblk0/inflight: 0 0
block/mmcblk0/ext_range:256
block/mmcblk0/power/runtime_suspended_time:0
block/mmcblk0/power/runtime_active_time:0
block/mmcblk0/power/control:auto
block/mmcblk0/power/runtime_status:unsupported
block/mmcblk0/dev:179:0
block/mmcblk0/hidden:0
block/mmcblk0/ro:0
block/mmcblk0/mq/0/nr_tags:64
block/mmcblk0/mq/0/nr_reserved_tags:0
block/mmcblk0/mq/0/cpu_list:0, 1
block/mmcblk0/stat: 15044 6575 930786 133172 7406 7430 127856 117951 0 91096 251124 0 0 0 0 0 0
block/mmcblk0/events_poll_msecs:-1
block/mmcblk0/removable:0
block/mmcblk0/size:124735488
block/mmcblk0/force_ro:0
block/mmcblk0/mmcblk0p1/start:8192
block/mmcblk0/mmcblk0p1/inflight: 0 0
block/mmcblk0/mmcblk0p1/power/runtime_suspended_time:0
block/mmcblk0/mmcblk0p1/power/runtime_active_time:0
block/mmcblk0/mmcblk0p1/power/control:auto
block/mmcblk0/mmcblk0p1/power/runtime_status:unsupported
block/mmcblk0/mmcblk0p1/dev:179:1
block/mmcblk0/mmcblk0p1/ro:0
block/mmcblk0/mmcblk0p1/partition:1
block/mmcblk0/mmcblk0p1/stat: 14944 6575 926578 132738 7406 7430 127856 117951 0 91096 250690 0 0 0 0 0 0
block/mmcblk0/mmcblk0p1/size:123461632
block/mmcblk0/mmcblk0p1/alignment_offset:0
block/mmcblk0/mmcblk0p1/uevent:MAJOR=179
block/mmcblk0/mmcblk0p1/uevent:MINOR=1
block/mmcblk0/mmcblk0p1/uevent:DEVNAME=mmcblk0p1
block/mmcblk0/mmcblk0p1/uevent:DEVTYPE=partition
block/mmcblk0/mmcblk0p1/uevent:DISKSEQ=13
block/mmcblk0/mmcblk0p1/uevent:PARTN=1
block/mmcblk0/mmcblk0p1/discard_alignment:0
block/mmcblk0/alignment_offset:0
block/mmcblk0/queue/hw_sector_size:512
block/mmcblk0/queue/max_discard_segments:1
block/mmcblk0/queue/max_segment_size:65536
block/mmcblk0/queue/physical_block_size:512
block/mmcblk0/queue/discard_max_bytes:3741319168
block/mmcblk0/queue/rotational:0
block/mmcblk0/queue/zone_write_granularity:0
block/mmcblk0/queue/write_same_max_bytes:0
block/mmcblk0/queue/zoned:none
block/mmcblk0/queue/dma_alignment:511
block/mmcblk0/queue/max_sectors_kb:1280
block/mmcblk0/queue/discard_zeroes_data:0
block/mmcblk0/queue/read_ahead_kb:128
block/mmcblk0/queue/discard_max_hw_bytes:3741319168
block/mmcblk0/queue/wbt_lat_usec:2000
block/mmcblk0/queue/nomerges:0
block/mmcblk0/queue/max_segments:256
block/mmcblk0/queue/rq_affinity:1
block/mmcblk0/queue/iostats:1
block/mmcblk0/queue/dax:0
block/mmcblk0/queue/zone_append_max_bytes:0
block/mmcblk0/queue/minimum_io_size:512
block/mmcblk0/queue/chunk_sectors:0
block/mmcblk0/queue/io_poll:0
block/mmcblk0/queue/write_zeroes_max_bytes:0
block/mmcblk0/queue/max_hw_sectors_kb:4096
block/mmcblk0/queue/add_random:0
block/mmcblk0/queue/optimal_io_size:0
block/mmcblk0/queue/nr_requests:64
block/mmcblk0/queue/scheduler:[none] mq-deadline kyber bfq
block/mmcblk0/queue/io_timeout:60000
block/mmcblk0/queue/discard_granularity:4194304
block/mmcblk0/queue/virt_boundary_mask:0
block/mmcblk0/queue/logical_block_size:512
block/mmcblk0/queue/nr_zones:0
block/mmcblk0/queue/fua:0
block/mmcblk0/queue/io_poll_delay:-1
block/mmcblk0/queue/stable_writes:0
block/mmcblk0/queue/max_integrity_segments:0
block/mmcblk0/queue/write_cache:write through
block/mmcblk0/uevent:MAJOR=179
block/mmcblk0/uevent:MINOR=0
block/mmcblk0/uevent:DEVNAME=mmcblk0
block/mmcblk0/uevent:DEVTYPE=disk
block/mmcblk0/uevent:DISKSEQ=13
block/mmcblk0/integrity/write_generate:0
block/mmcblk0/integrity/device_is_integrity_capable:0
block/mmcblk0/integrity/tag_size:0
block/mmcblk0/integrity/read_verify:0
block/mmcblk0/integrity/protection_interval_bytes:0
block/mmcblk0/integrity/format:none
block/mmcblk0/discard_alignment:0
cid:035344534c36344780d0106ac300fa53
csd:400e00325b590001dbd37f800a4040df
date:10/2015
dsr:0x404
erase_size:512
fwrev:0x0
hwrev:0x8
manfid:0x000003
name:SL64G
ocr:0x00300000
oemid:0x5344
power/runtime_suspended_time:53263577
power/autosuspend_delay_ms:3000
power/runtime_active_time:11848889
power/control:auto
power/runtime_status:suspended
preferred_erase_size:4194304
rca:0xe624
scr:0245800300000000
serial:0xd0106ac3
ssr:0000000008000000040090000f050a00 … 000
subsystem/drivers_autoprobe:1
type:SD
uevent:DRIVER=mmcblk
uevent:MMC_TYPE=SD
uevent:MMC_NAME=SL64G
uevent:MODALIAS=mmc:block