On 2025-06-06, Florian Obser <flor...@openbsd.org> wrote: > Hi, > > when I plug in my kobo sage e-reader I get this in dmesg (amd64, > -current-ish): > > umass0 at uhub0 port 3 configuration 1 interface 0 "Linux 4.9.56 with > sunxi_usb_udc Composite Gadget (ACM + MS)" rev 2.00/4.09 addr 3 > umass0: using SCSI over Bulk-Only > scsibus4 at umass0: 2 targets, initiator 0 > > My previous e-reader (kobo aura hd iirc) would put something similar > into dmesg, but there would also be a line about sd(4) and I could mount > (in my case) /dev/sd2i as msdos file system. > > How do I access the kobo sage from OpenBSD and to put stuff on?
I don't specifically know about this e-reader, but USB mass storage emulation has gone out of fashion on phones as FAT doesn't make for a very good shared-access filesystem, I think there's probably a fair chance they might have done the same. Usually MTP is used instead. The only way to do this from OpenBSD is with userland tools using libusb - e.g. simple-mtpfs (FUSE) or the cli tools in libmtp - so I'd investigate that, but bear in mind that this is not an area OpenBSD does well in. (If they don't work directly you could try preventing the device from attaching to umass and see if that changes anything). -- Please keep replies on the mailing list.
