[arch-general] USB Access of Nikon D3500 DSLR

[Roland Pfeifer]

On 05.06.21 20:04, Roland Pfeifer via arch-general wrote:
> On 05.06.21 18:58, das via arch-general wrote:
>> On Sat, Jun 5, 2021 at 8:53 PM Roland Pfeifer via arch-general <
>> arch-general at lists.archlinux.org> wrote:
>>
>>>
>>> Is your camera setup as "Mass storage" under "Setup menu", "USB"?
>>> At least my older camera works fine with this setting under 
>>> (Arch)-Linux.
>>> Here are the dmsg i get:
>>> usb 1-1.1: new high-speed USB device number 7 using xhci_hcd
>>> usb 1-1.1: New USB device found, idVendor=04b0, idProduct=0419,
>>> bcdDevice= 1.11
>>> usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
>>> usb 1-1.1: Product: NIKON DSC D300
>>> usb 1-1.1: Manufacturer: NIKON
>>> usb 1-1.1: SerialNumber: xxxxxxxxxxxx
>>> usb-storage 1-1.1:1.0: USB Mass Storage device detected
>>> scsi host0: usb-storage 1-1.1:1.0
>>>
>>>
>> Dear Friend
>>
>> Though 'lsusb' and 'usb-devices' are showing it, the system is not 
>> showing
>> it at all. And obviously it is not getting mounted like a pen-drive or a
>> mass-storage.
>>
> 
> One thing is after a kernel update modules may not get loaded. So you 
> may need  a restart so usb-devices might get mounted.
> 
> Is a normal pen-drive working?

simpler to read the difference from "usb-devices":

Mass-storage Usb Mode:

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=04b0 ProdID=0419 Rev=01.11
S:  Manufacturer=NIKON
S:  Product=NIKON DSC D300
S:  SerialNumber=000004176493
C:  #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=2mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage


---------------------------------------------------------
Ptp-Mode Usb Mode:

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 11 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=04b0 ProdID=041a Rev=01.11
S:  Manufacturer=NIKON
S:  Product=NIKON DSC D300
S:  SerialNumber=000004176493
C:  #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=2mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=(none)