microsd card in card reader:

[185774.656153] usb 2-5.4.2: new high speed USB device number 40 using ehci_hcd
[185774.777369] usb-storage 2-5.4.2:1.0: Quirks match for vid 05e3 pid 0723: 8000
[185774.777429] scsi38 : usb-storage 2-5.4.2:1.0
[185775.777682] scsi 38:0:0:0: Direct-Access     Generic  STORAGE DEVICE   9451 PQ: 0 ANSI: 0
[185775.778432] sd 38:0:0:0: Attached scsi generic sg8 type 0
[185775.974911] sd 38:0:0:0: [sdh] 15564800 512-byte logical blocks: (7.96 GB/7.42 GiB)
[185775.976032] sd 38:0:0:0: [sdh] Write Protect is off
[185775.976036] sd 38:0:0:0: [sdh] Mode Sense: 03 00 00 00
[185775.977158] sd 38:0:0:0: [sdh] No Caching mode page present
[185775.977162] sd 38:0:0:0: [sdh] Assuming drive cache: write through
[185775.981526] sd 38:0:0:0: [sdh] No Caching mode page present
[185775.981537] sd 38:0:0:0: [sdh] Assuming drive cache: write through
[185775.982804]  sdh: sdh1 sdh2
[185775.986149] sd 38:0:0:0: [sdh] No Caching mode page present
[185775.986162] sd 38:0:0:0: [sdh] Assuming drive cache: write through
[185775.986167] sd 38:0:0:0: [sdh] Attached SCSI removable disk


usb thumb drive:

[187096.200167] usb 2-5.4.1: new high speed USB device number 41 using ehci_hcd
[187096.338792] scsi39 : usb-storage 2-5.4.1:1.0
[187097.337189] scsi 39:0:0:0: Direct-Access                               0.00 PQ: 0 ANSI: 2
[187097.337943] sd 39:0:0:0: Attached scsi generic sg9 type 0
[187097.338662] sd 39:0:0:0: [sdi] 3788800 512-byte logical blocks: (1.93 GB/1.80 GiB)
[187097.339654] sd 39:0:0:0: [sdi] Write Protect is off
[187097.339659] sd 39:0:0:0: [sdi] Mode Sense: 00 00 00 00
[187097.340655] sd 39:0:0:0: [sdi] Asking for cache data failed
[187097.340660] sd 39:0:0:0: [sdi] Assuming drive cache: write through
[187097.346031] sd 39:0:0:0: [sdi] Asking for cache data failed
[187097.346035] sd 39:0:0:0: [sdi] Assuming drive cache: write through
[187097.458206]  sdi: sdi1
[187097.577159] sd 39:0:0:0: [sdi] Asking for cache data failed
[187097.577164] sd 39:0:0:0: [sdi] Assuming drive cache: write through
[187097.577169] sd 39:0:0:0: [sdi] Attached SCSI removable disk

But:

11:23 hrw@puchatek:~$ udisks --dump|grep device-file
  device-file:                 /dev/sda
  device-file:                 /dev/sda3
  device-file:                 /dev/sdb
  device-file:                 /dev/sdb1
  device-file:                 /dev/sdc
  device-file:                 /dev/sdc1
  device-file:                 /dev/sdc2
  device-file:                 /dev/sdd
  device-file:                 /dev/sde
  device-file:                 /dev/sdf
  device-file:                 /dev/sdg
  device-file:                 /dev/sr0

While:

11:23 hrw@puchatek:~$ lsblk 
NAME   MAJ:MIN RM   SIZE RO MOUNTPOINT
sda      8:0    0 465,8G  0 
└─sda3   8:3    0 465,8G  0 /home/hrw/HDD
sdb      8:16   0   1,4T  0 
└─sdb1   8:17   0   1,4T  0 /media/storage
sdc      8:32   0  55,9G  0 
├─sdc1   8:33   0    30G  0 /
└─sdc2   8:34   0  25,9G  0 /home
sr0     11:0    1   3,7G  0 
sdh      8:112  1   7,4G  0 
├─sdh1   8:113  1  70,6M  0 
└─sdh2   8:114  1   7,4G  0 
sdi      8:128  1   1,8G  0 
└─sdi1   8:129  1   1,8G  0 

For me it looks like udisks are not able to recognize hotplugged devices on my system. The problem is that I use a tool which rely on udisks to present me a list of devices to which I can write to.