Naar aanleiding van de reactie van Geert Stappers:

>
> Wat ik **zelf bedacht** heb, is deze ketting:
>
>  * Laptop
>
> rene@dikke:~$ lsb_release -a
> No LSB modules are available.
> Distributor ID: Debian
> Description: Debian GNU/Linux 9.13 (stretch)
> Release: 9.13
> Codename: stretch
> rene@dikke:~$
>
> Het fat16 kaartje is 1 GB groot, zogenaamd Hi-Speed. Deze wordt gebruikt
> voor een 3D-printer. De printer biedt niet de mogelijkheid de kaart eerst
> te ontkoppelen voordar deze verwijderd wordt.
> Het 1-e exfat kaartje is een micr SD-kaartje van 64 GB, Sandisk ultra, in
> een adapterkaart.
> Het 2-e exfat kaartje is een micr SD-kaartje van 128 GB, Sandisk ultra, in
> een adapterkaart.
>
> De SD-kaartjes gaan in een kaartsleuf in de laptop. Ik denk daarom dat
> e.e.a. niet met USB te maken heeft, maar vergeef me mijn gebrek aan kennis.
>
>  * USB poort   (Type ...    ,  werkt goed met ... )
> n.v.t.
>  * USB kabel,  de originele die bij de camera hoort
> n.v.t.
>  * USB connector,     geen beschadigingen te zien
> n.v.t.
>  * Camera, lastig te omschrijven, toch een poging
>    * Stroom van uit het stopcontact  (niet op batterijen)
>    * Wakker  (niet in een slaapstand over andere power save mode
>    * Display c.q. Menu van de camera toont beide SD-kaartjes
>    * De sleufen voor de SD-kaartje verschillen alleen van nummer
>       ( geen aanwijzigingen als "Configuration"  of "Mass storage"
>         of andere verschillen, gewoon SD1 en SD2)
> alleen instelling voor welke soort bestanden op welke kaart gaan ( i.c.
> NEF en jpg ).
>  * Beide SD-kaartjes zijn van dezelfde Klasse
>    ( https://en.wikipedia.org/wiki/SD_card#Class )
> Ja.
>
>
> > Na een reboot kan ik beide kaartjes *eenmalig* benaderen.
>
> Dit was onnauwkeurig weergegeven: bedoeld was: Na een reboot kan ik alleen
> de eerst ingestoken exif-kaart benaderen.
>
>
> >Wat is er **voor** en **na**  met  `lsusb` te zien?
>
> Maakt geen verschil.
>
> >Kernel diagnostic messages, commando `dmesg` wat laat die zien?
>
> Zie onder.
>
>
> >En als de Linux onderzocht is, onderzoek dan ook de camera kant.
>
>
> Groeten
> Geert Stappers
> Leerde later pas dat Andriod devices verschillende USB-modes hebben.
> --
> Silence is hard to parse
>
> ...
> - - - - - - - - - - - - - - - - - - - -
>
> De output van dmesg met fat16 kaart ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [90580.394296] wlp5s0: authenticated
> [90580.401293] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [90580.402466] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=3)
> [90580.407979] wlp5s0: associated
> [90580.431870] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [90580.440070] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [91380.129830] mmc0: new SD card at address 0001
> [91380.130080] mmcblk0: mmc0:0001 SD 974 MiB
> [91380.131407]  mmcblk0: p1
> [91380.646465] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> root@dikke:/home/rene#
>
>
> Na reboot:
>
> root@dikke:/home/rene# dmesg|tail
> [   23.564903] IPv6: ADDRCONF(NETDEV_UP): wlp5s0: link is not ready
> [   30.862182] wlp5s0: authenticate with d4:7b:b0:3d:0e:75
> [   30.864520] wlp5s0: send auth to d4:7b:b0:3d:0e:75 (try 1/3)
> [   30.866580] wlp5s0: authenticated
> [   30.873895] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [   30.877813] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=2)
> [   30.879310] wlp5s0: associated
> [   30.904825] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [   30.972706] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [   67.442245] EXT4-fs (sda1): mounted filesystem with ordered data mode.
> Opts: (null)
> root@dikke:/home/rene#
>
>
> exfat kaart 1 ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [   30.873895] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [   30.877813] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=2)
> [   30.879310] wlp5s0: associated
> [   30.904825] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [   30.972706] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [   67.442245] EXT4-fs (sda1): mounted filesystem with ordered data mode.
> Opts: (null)
> [  300.562258] mmc0: cannot verify signal voltage switch
> [  300.694220] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na unmount:
>
> root@dikke:/home/rene# dmesg|tail
> [   30.879310] wlp5s0: associated
> [   30.904825] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [   30.972706] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [   67.442245] EXT4-fs (sda1): mounted filesystem with ordered data mode.
> Opts: (null)
> [  300.562258] mmc0: cannot verify signal voltage switch
> [  300.694220] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> root@dikke:/home/rene#
>
>
> Na kaart verwijderd:
>
> root@dikke:/home/rene# dmesg|tail
> [   30.904825] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [   30.972706] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [   67.442245] EXT4-fs (sda1): mounted filesystem with ordered data mode.
> Opts: (null)
> [  300.562258] mmc0: cannot verify signal voltage switch
> [  300.694220] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> [  701.582359] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
>
> Zelfde exfat kaart opnieuw ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [  300.694220] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> [  701.582359] mmc0: card aaaa removed
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na kaart unmount:
>
> root@dikke:/home/rene# dmesg|tail
> [  300.694220] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> [  701.582359] mmc0: card aaaa removed
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na kaart verwijderd:
>
> root@dikke:/home/rene# dmesg|tail
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> [  701.582359] mmc0: card aaaa removed
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> [ 4568.888117] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
>
> 2-e exfat kaart ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [  300.698010] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  300.699857]  mmcblk0: p1
> [  595.051672] JFS: nTxBlock = 8192, nTxLock = 65536
> [  595.067213] SGI XFS with ACLs, security attributes, realtime, no debug
> enabled
> [  701.582359] mmc0: card aaaa removed
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> [ 4568.888117] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
> wordt niets mee gedaan.
>
> fat16 kaart ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [  701.582359] mmc0: card aaaa removed
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> [ 4568.888117] mmc0: card aaaa removed
> [ 4683.319241] mmc0: new SD card at address 0001
> [ 4683.319553] mmcblk0: mmc0:0001 SD 974 MiB
> [ 4683.320615]  mmcblk0: p1
> [ 4683.797399] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> root@dikke:/home/rene#
>
>
> fat16 kaart verwijderd:
>
> root@dikke:/home/rene# dmesg|tail
> [ 4395.140556] mmc0: cannot verify signal voltage switch
> [ 4395.273005] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 4395.273330] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 4395.275273]  mmcblk0: p1
> [ 4568.888117] mmc0: card aaaa removed
> [ 4683.319241] mmc0: new SD card at address 0001
> [ 4683.319553] mmcblk0: mmc0:0001 SD 974 MiB
> [ 4683.320615]  mmcblk0: p1
> [ 4683.797399] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> [ 4856.107726] mmc0: card 0001 removed
> root@dikke:/home/rene#
>
>
> 1-e exfat kaart terug ingestoken:
>
> root@dikke:/home/rene# dmesg|tail
> [ 4683.319241] mmc0: new SD card at address 0001
> [ 4683.319553] mmcblk0: mmc0:0001 SD 974 MiB
> [ 4683.320615]  mmcblk0: p1
> [ 4683.797399] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> [ 4856.107726] mmc0: card 0001 removed
> [ 4912.019329] mmc0: error -110 whilst initialising SD card
> [ 5078.527469] mmc0: cannot verify signal voltage switch
> [ 5078.659792] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 5078.660438] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 5078.662511]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na verwijderen 1-e exfat kaart:
>
> root@dikke:/home/rene# dmesg|tail
> [ 4683.319553] mmcblk0: mmc0:0001 SD 974 MiB
> [ 4683.320615]  mmcblk0: p1
> [ 4683.797399] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> [ 4856.107726] mmc0: card 0001 removed
> [ 4912.019329] mmc0: error -110 whilst initialising SD card
> [ 5078.527469] mmc0: cannot verify signal voltage switch
> [ 5078.659792] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 5078.660438] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 5078.662511]  mmcblk0: p1
> [ 5174.516502] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
>
> Na slaapstand en opnieuw inloggen:
>
> 1-e exfat kaart:
>
> root@dikke:/home/rene# dmesg|tail
> [ 6054.338277] wlp5s0: authenticated
> [ 6054.340932] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [ 6054.341952] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=2)
> [ 6054.342448] wlp5s0: associated
> [ 6054.384619] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [ 6054.392662] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [ 6500.504601] mmc0: cannot verify signal voltage switch
> [ 6500.636217] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 6500.636433] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 6500.638585]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na verwijdering:
>
> root@dikke:/home/rene# dmesg|tail
> [ 6054.340932] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [ 6054.341952] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=2)
> [ 6054.342448] wlp5s0: associated
> [ 6054.384619] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [ 6054.392662] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [ 6500.504601] mmc0: cannot verify signal voltage switch
> [ 6500.636217] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 6500.636433] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 6500.638585]  mmcblk0: p1
> [ 6665.591687] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
>
> Na reboot
>
> root@dikke:/home/rene# dmesg|tail
> [  117.289793] IPv6: ADDRCONF(NETDEV_UP): wlp5s0: link is not ready
> [  117.395662] wlp5s0: authenticate with d4:7b:b0:3d:0e:75
> [  117.397787] wlp5s0: send auth to d4:7b:b0:3d:0e:75 (try 1/3)
> [  117.399376] wlp5s0: authenticated
> [  117.400383] wlp5s0: associate with d4:7b:b0:3d:0e:75 (try 1/3)
> [  117.401660] wlp5s0: RX AssocResp from d4:7b:b0:3d:0e:75 (capab=0x1011
> status=0 aid=2)
> [  117.411401] wlp5s0: associated
> [  117.440814] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s0: link becomes ready
> [  117.452596] wlp5s0: Limiting TX power to 23 (23 - 0) dBm as advertised
> by d4:7b:b0:3d:0e:75
> [  155.835554] EXT4-fs (sda1): mounted filesystem with ordered data mode.
> Opts: (null)
> root@dikke:/home/rene#
>
>
>
> 2-e exfat kaart, na verwijderen fat16-kaart zonder deze af te koppelen:
>
> root@dikke:/home/rene# dmesg|tail
> [  424.351373] mmc0: card 0001 removed
> [  478.113252] mmc0: new SD card at address 0001
> [  478.113548] mmcblk0: mmc0:0001 SD 974 MiB
> [  478.114518]  mmcblk0: p1
> [  478.587207] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> [  485.345828] mmc0: card 0001 removed
> [  490.730760] mmc0: cannot verify signal voltage switch
> [  490.864068] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  490.864403] mmcblk0: mmc0:aaaa SL128 119 GiB
> [  490.866792]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> Na ontkoppelen 2-e exfat kaart, 1-e weer ingestoken, wordt aangekoppeld
>
> root@dikke:/home/rene# dmesg|tail
> [  485.345828] mmc0: card 0001 removed
> [  490.730760] mmc0: cannot verify signal voltage switch
> [  490.864068] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  490.864403] mmcblk0: mmc0:aaaa SL128 119 GiB
> [  490.866792]  mmcblk0: p1
> [  675.249920] mmc0: card aaaa removed
> [  688.339006] mmc0: cannot verify signal voltage switch
> [  688.470935] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  688.471171] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  688.473179]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> 2-e exfat kaart unmounted, niet verwijderd uit kaartrslot:
>
>
> root@dikke:/home/rene# dmesg|tail
> [  485.345828] mmc0: card 0001 removed
> [  490.730760] mmc0: cannot verify signal voltage switch
> [  490.864068] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  490.864403] mmcblk0: mmc0:aaaa SL128 119 GiB
> [  490.866792]  mmcblk0: p1
> [  675.249920] mmc0: card aaaa removed
> [  688.339006] mmc0: cannot verify signal voltage switch
> [  688.470935] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  688.471171] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  688.473179]  mmcblk0: p1
> root@dikke:/home/rene#
>
>
> 2-e exfat verwijderd uit kaartslot:
>
> root@dikke:/home/rene# dmesg|tail
> [  490.730760] mmc0: cannot verify signal voltage switch
> [  490.864068] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  490.864403] mmcblk0: mmc0:aaaa SL128 119 GiB
> [  490.866792]  mmcblk0: p1
> [  675.249920] mmc0: card aaaa removed
> [  688.339006] mmc0: cannot verify signal voltage switch
> [  688.470935] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [  688.471171] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [  688.473179]  mmcblk0: p1
> [  941.821729] mmc0: card aaaa removed
> root@dikke:/home/rene#
>
>
> 2-e exfat kaart opnieuw ingestoken, wordt niet gemount.
>
> fat16 kaart ingestoken en verwijderd zonder te unmounten.
>
> 2-e exfat kaart opnieuw ingestoken, wordt niet gemount.
>
> 1-e exfat kaart opnieuw ingestoken, wordt gemount.
>
>
> root@dikke:/home/rene# dmesg|tail
> [  941.821729] mmc0: card aaaa removed
> [ 1587.720867] mmc0: new SD card at address 0001
> [ 1587.721078] mmcblk0: mmc0:0001 SD 974 MiB
> [ 1587.722084]  mmcblk0: p1
> [ 1588.204428] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some
> data may be corrupt. Please run fsck.
> [ 1613.420969] mmc0: card 0001 removed
> [ 1670.351946] mmc0: cannot verify signal voltage switch
> [ 1670.484401] mmc0: new ultra high speed SDR104 SDXC card at address aaaa
> [ 1670.484986] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 1670.486870]  mmcblk0: p1
> root@dikke:/home/rene#
>
> - - - - - - - - - - - - - - - - - - - -
>
> Wat er allemaal gebeurt lijkt niet reproduceerbaar.
> Ik begin er al spijt van te krijgen dat ik de vraag gesteld heb.
> Het vervelende is dat ik meestal een aantal documenten/ programma's open
> heb staan.
> Herstarten betekent die allemaal weer openen.
> Daarnaast moet ik altijd beide kaartjes van mijn fotocamera uitlezen nadat
> ik gefotografeerd heb. En dat doe ik veel.
> Als er geen simpele oplossing is zal ik me er bij neer moeten leggen dat
> e.e.a. onvoorspelbaar is en dat herstarten toch nodig is.
>
> Iedereen in ieder geval bedankt voor het meedenken,
>
> Groeten,
>
> René.
>
>

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