On Sunday 20 of December 2020 13:31:36 deloptes wrote: > Hi, > looking into how to add MTP some questions arise > > 1. Why is there the usb.ids file in > core/tdebase/kcontrol/usbview/usb.ids > Why is the file so outdated - actually has no revision, but compared > to /var/lib/usbutils/usb.ids which is part of package usb.ids Why not > using the officially maintained usb.ids file? > There is a build option WITH_USBIDS that allows to specify the usb.ids path on the system. For example, in tde-packaging for deb packages you can see that this option is used. Therefore, this file is not installed as part of deb packages. > 2. the USB ids are handled in tdelibs and tdebase. Adding MTP as > separate tdeio module would impact also these, or is there a better > approach? > How is an MTP tdeio slave assigned to a device? Is it based on a mimetype? Or does tdeio-mtp work as a special ioslave to find and provide all MTP devices? If during the device recognition in tdehw-lib there we would identify the MTP device and set the appropriate device type and flags, this could probably be useful? > 3. as I understand the TDE library classifies the device based on some > string in the usb.ids, but I am not exactly sure how it will classify > one device as Camera (PTP) and another as MTP. > Devices in tdehw-lib are recognized by data from udev => values visible in sysfs and discoverable by udevadm. I tried to find out if there is information available that the device is MTP and I found the value ID_MTP_DEVICE=1. So far, there doesn't seem to be any code in tdehw-lib to recognize and operate MTP devices. > Can someone elaborate on these questions please? > ____________________________________________________ Cheers -- Slávek
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