Ticket #260 (closed defect: fixed)
implement 100mA charging in Linux
|Reported by:||laforge@…||Owned by:||stefan@…|
|Component:||kernel||Version:||current svn head|
|Cc:||buglog@…, werner@…||Blocked By:|
|Blocking:||Estimated Completion (week):|
Linux should export two USB configuration descriptors that are completely
identical, with one difference: power consumption. The first config descriptor
should indicate 250 units (500mA), whereas the second one should indicate 50
Please also note that we should verify that the 'self powered' flag in both
configurations is switched off.
Currently, we only export one descriptor with 500mA. This means that if you
attach your fully-booted Neo1973 to a bus-powered hub (such as the DebugBoard?
v2), it will not enumerate on the USB [since the host cannot provde 500mA but
the device only exports one configuration with that high current].