On Mon, 2018-04-30 at 20:09 +0000, Matthew Starr wrote: > > -----Original Message----- > > From: Aleksander Morgado [mailto:[email protected]] > > > > > > > > I don't understand why there is a 20 second timeout. Couldn't > > > you just test > > > > the AT interface right away with 'AT' instead of waiting a timeout > > and then > > trying it. Also 20 seconds is a long time. Couldn't a much > > shorter timeout be > > put in with some message sent to the modem to get it to respond > > (like 'AT') > > and do that several times to add up to 20 seconds. This seems like > > it would > > be much quicker in cases where the modem did not respond > > immediately > > and might resolve this issue. > > > > > > > That 20s timeout is really an artifact added for the TOBY-L4, to > > wait > > for the +READY URC it sends if the port is detected via hotplug > > events. It's actually just to make it quicker the probing in the > > TOBY-L4. This should be therefore something specific for the TOBY- > > L4 > > and not something generic for all u-blox modems... sorry for that > > :/ > > > > I'll gladly accept a patch that makes this 20s timeout something > > specific for the TOBY-L4 ;) > > I changed that timeout to 2 seconds and it resolved the 20 second > timeout I was seeing. Now as you said it needs to be something > specific for the TOBY-L4. At this early of a point in registration > you haven't read the model number yet since communication hasn't been > established. The only way I can think of detecting the TOBY-L4 is > using the USB product ID. > > Is there a function that allows obtaining the USB product ID that can > be used in the context of the wait_for_ready() function in the > plugins/ublox/mm-plugin-ublox.c file? I tried the > mm_port_probe_get_product() function called within the > wait_for_ready() function, but just got (null) returned. > > Do you know if the TOBY-L4 has a unique USB product ID? If so, do > you know what it is?
Could do it through udev tags too; eg tag TOBY-L4 in the udev rules as needing a larger timeout, but all the rest get a shorter one. Dan _______________________________________________ ModemManager-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
