Allow power without data

[vincentbernat]

Hey!

When a device is not authorized, the bMax attribute in sysfs is empty. The device will draw only 100mA in this configuration. Authorizing the device puts 500mA (in case of a Sony headset) and the device can draw 500mA (if authorized soon enough, otherwise, I suppose it stopped trying to get more).

Would it be possible to authorize a device for power, but not for data. I didn't find such a possibility in the Linux kernel documentation, so maybe not.

[muelli]

good question.
Sounds like something to bring up with the Linux people.