Anker USB-C 2-in-1 Card Reader

kai12 · 03-06-2021, 09:59 AM

Hi all,

my Ubuntu 20.04 Linux does not seem to recognize an Anker USB-C 2-in-1 Card Reader. I bought it assuming that an USB hub device like this would work out of the box.

Is there a reason why this wouldn't work? USB Memory Thumb Drives are mounted OK when plugged into the USB-C port but the card reader (with an SD card inserted) will not be automounted.

kai

Emerson · 03-07-2021, 08:55 PM

Even if you hook up the reader first and then insert the card?

kai12 · 03-08-2021, 01:20 AM

Quote:

Originally Posted by Emerson

Even if you hook up the reader first and then insert the card?

I tried that, too. Even then the device does not show up. The log files report an SCSI device becoming available so I tried to mount the device manually but without success.

Emerson · 03-08-2021, 08:33 AM

OK, here I plug in my card reader:

Code:

 ~ $ dmesg -W
[148992.586545] usb 1-10: new high-speed USB device number 8 using xhci_hcd
[148992.712753] usb 1-10: config 1 interface 1 altsetting 0 bulk endpoint 0x5 has invalid maxpacket 16
[148992.712759] usb 1-10: config 1 interface 1 altsetting 0 bulk endpoint 0x86 has invalid maxpacket 16
[148992.871231] usb-storage 1-10:1.0: USB Mass Storage device detected
[148992.871448] scsi host6: usb-storage 1-10:1.0
[148993.905332] scsi 6:0:0:0: Direct-Access     Generic  Compact Flash    0.00 PQ: 0 ANSI: 2
[148993.905638] sd 6:0:0:0: Attached scsi generic sg2 type 0
[148993.906975] scsi 6:0:0:1: Direct-Access     Generic  SD/MMC           0.00 PQ: 0 ANSI: 2
[148993.907191] sd 6:0:0:1: Attached scsi generic sg3 type 0
[148993.907918] scsi 6:0:0:2: Direct-Access     Generic  microSD          0.00 PQ: 0 ANSI: 2
[148993.908259] sd 6:0:0:2: Attached scsi generic sg4 type 0
[148993.909210] scsi 6:0:0:3: Direct-Access     Generic  MS/MS-PRO        0.00 PQ: 0 ANSI: 2
[148993.909562] sd 6:0:0:3: Attached scsi generic sg5 type 0
[148993.910308] scsi 6:0:0:4: Direct-Access     Generic  SM/xD-Picture    0.00 PQ: 0 ANSI: 2
[148993.911120] sd 6:0:0:4: Attached scsi generic sg6 type 0
[148993.912934] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[148993.918034] sd 6:0:0:1: [sdd] Attached SCSI removable disk
[148993.921039] sd 6:0:0:4: [sdg] Attached SCSI removable disk
[148993.921790] sd 6:0:0:2: [sde] Attached SCSI removable disk
[148993.922253] sd 6:0:0:3: [sdf] Attached SCSI removable disk

And now I insert a card:

Code:

[149041.580701] sd 6:0:0:1: [sdd] 15728640 512-byte logical blocks: (8.05 GB/7.50 GiB)
[149041.582599]  sdd: sdd1 sdd2

and finally, I mount the filesystem on second partition by hand:

Code:

[149106.023883] EXT4-fs (sdd2): mounted filesystem with ordered data mode. Opts: (null)

What's different in your case?

computersavvy · 03-09-2021, 03:22 PM

On my system (I have a 2 slot SD card reader, one is micro and one is standard)
This is the card reader with no card in the slot

Code:

[57822.733709] usb 4-3: new SuperSpeed Gen 1 USB device number 3 using xhci_hcd
[57822.750764] usb 4-3: New USB device found, idVendor=05e3, idProduct=0749, bcdDevice=15.38
[57822.750767] usb 4-3: New USB device strings: Mfr=3, Product=4, SerialNumber=5
[57822.750768] usb 4-3: Product: USB3.0 Card Reader
[57822.750769] usb 4-3: Manufacturer: Generic
[57822.750769] usb 4-3: SerialNumber: 000000001538
[57822.751613] usb-storage 4-3:1.0: USB Mass Storage device detected
[57822.751703] scsi host7: usb-storage 4-3:1.0
[57823.788616] scsi 7:0:0:0: Direct-Access     Generic  MassStorageClass 1538 PQ: 0 ANSI: 6
[57823.789457] scsi 7:0:0:1: Direct-Access     Generic  MassStorageClass 1538 PQ: 0 ANSI: 6
[57823.789738] sd 7:0:0:0: Attached scsi generic sg7 type 0
[57823.789901] sd 7:0:0:1: Attached scsi generic sg8 type 0
[57824.195488] sd 7:0:0:0: [sdg] Attached SCSI removable disk
[57824.400153] sd 7:0:0:1: [sdh] Attached SCSI removable disk

and this is the same reader with 1 micro card in the slot

Code:

[57941.045324] usb 4-3: new SuperSpeed Gen 1 USB device number 4 using xhci_hcd
[57941.061380] usb 4-3: New USB device found, idVendor=05e3, idProduct=0749, bcdDevice=15.38
[57941.061383] usb 4-3: New USB device strings: Mfr=3, Product=4, SerialNumber=5
[57941.061384] usb 4-3: Product: USB3.0 Card Reader
[57941.061385] usb 4-3: Manufacturer: Generic
[57941.061385] usb 4-3: SerialNumber: 000000001538
[57941.063011] usb-storage 4-3:1.0: USB Mass Storage device detected
[57941.063277] scsi host7: usb-storage 4-3:1.0
[57942.124231] scsi 7:0:0:0: Direct-Access     Generic  MassStorageClass 1538 PQ: 0 ANSI: 6
[57942.124941] scsi 7:0:0:1: Direct-Access     Generic  MassStorageClass 1538 PQ: 0 ANSI: 6
[57942.125164] sd 7:0:0:0: Attached scsi generic sg7 type 0
[57942.125332] sd 7:0:0:1: Attached scsi generic sg8 type 0
[57942.620960] sd 7:0:0:1: [sdh] 124735488 512-byte logical blocks: (63.9 GB/59.5 GiB)
[57942.621503] sd 7:0:0:1: [sdh] Write Protect is off
[57942.621506] sd 7:0:0:1: [sdh] Mode Sense: 21 00 00 00
[57942.622016] sd 7:0:0:1: [sdh] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[57942.622712] sd 7:0:0:0: [sdg] Attached SCSI removable disk
[57942.830522]  sdh: sdh1 sdh2 sdh3
[57942.853014] sd 7:0:0:1: [sdh] Attached SCSI removable disk
[57943.594780] BTRFS: device label fedora_fedora devid 1 transid 4716 /dev/sdh3 scanned by systemd-udevd (319267)
[57943.663909] EXT4-fs (sdh2): mounted filesystem with ordered data mode. Opts: (null)
[57943.679036] BTRFS info (device sdh3): disk space caching is enabled
[57943.679039] BTRFS info (device sdh3): has skinny extents

My device is USB3 and very generic. It is not USB-C and has no problems. When was that device released? Maybe it is too new for it to be properly recognized. Most USB devices are supported except for the very newest.

kai12 · 03-10-2021, 02:01 AM

computersavvy, Emerson: thanks for looking into this!

I'm a little embarassed to say that when I went back and turned on dmesg -w I got the same results as you did, and the SD card was even automounted by the system. So problem solved. I'm a bit puzzled why I was having issues before.

best wishes
kai