Editing N900 Hardware USB Host
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USB Host mode has reached beta status, and is working reliably with manual speed switching. | USB Host mode has reached beta status, and is working reliably with manual speed switching. | ||
- | Proper host mode would only require the normal cable, and a commonly available adapter. ([http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250641334947 USB A-A adaptor]) | + | Proper host mode would only require the normal cable, and a commonly available adapter. ([http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250641334947 USB A-A adaptor]) |
A pre-alpha of hostmode was released on the 23rd of September, here: http://talk.maemo.org/showthread.php?p=824298 | A pre-alpha of hostmode was released on the 23rd of September, here: http://talk.maemo.org/showthread.php?p=824298 | ||
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*If the supply is a charger (D+,D- short, detected by the 1707a), fast charge. | *If the supply is a charger (D+,D- short, detected by the 1707a), fast charge. | ||
*Attempt to enumerate as a device, if this succeeds (including handling of suspended busses), then enumerate and charge as a device, respecting the enumerated current. | *Attempt to enumerate as a device, if this succeeds (including handling of suspended busses), then enumerate and charge as a device, respecting the enumerated current. | ||
- | *If both enumeration as a device and charger detection have failed, we may be plugged into a hub or device with reverse power. Attempt to enumerate connected devices (=hostmode | + | *If both enumeration as a device and charger detection have failed, we may be plugged into a hub or device with reverse power. Attempt to enumerate connected devices (=hostmode). Charge at user-defined maximum current. For example - may be a 500mA power supply also supplying the hub and a keyboard = 2 unit loads - max draw = 300mA. |
==Installation== | ==Installation== | ||
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* http://www.youtube.com/watch?v=0YPk4Y0ZPQY by divan0 (usb card reader) | * http://www.youtube.com/watch?v=0YPk4Y0ZPQY by divan0 (usb card reader) | ||
* http://www.youtube.com/watch?v=3IyeSNGCWTA by divan0 (usb Ethernet adapter) | * http://www.youtube.com/watch?v=3IyeSNGCWTA by divan0 (usb Ethernet adapter) | ||
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==Hostmode development team:== | ==Hostmode development team:== |
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