yuri wrote: > On 29/02/2008, Stephen Irons wrote: > >> When connecting a Vodafone 715 mobile phone to a PC running Ubuntu >> Gutsy...nothing happens. Well, nothing visible. lsusb reveals that the >> kernel sees the device plugged in: >> > [snip] > >> Just USB mass-storage support (to speed up transfer of files to the >> device) would be enough: it costs too much to access the internet via >> mobile phone. >> > > Does the connectivity menu on the phone give an option to activate USB > mass storage? > Some phones have two modes for USB. > > Yuri > There is nothing obvious in the settings that suggests a USB storage option; I think I have traversed the whole menu-space. It has been easy to find on other devices (like my camera).
Some debugging over the weekend with the help of a friend's Windows box: 1. The Vodafone PC Assist software includes a Windows device driver that make the phone look like a USB serial port. 2. Typing 'AT <enter>' at a terminal gets an 'OK' response, but 'ATDT <number>', 'ATH0' and 'ATH1' give an error message. They seem to have some private protocol running over the serial connection. 3. The PC Assist software includes functions to manage the SMS, calls and emails on the phone, to synchronise the phone's address book and calendar with Outlook, and to manage files on the phone. It also includes a useless photo editor, and so on. They have fallen into the trap of trying to provide a phone management application, rather than providing a connection so that you can use your own first-class tools to manage the set of data that happens to be on the phone. 4. It might be possible to reverse engineer the protocol over the serial connection. One would hope it is the same as the E620 or E220, for which support seems to be coming slowly. 5. The PC Assist application restricts the serial speed is limited to 115200 baud. Transfer rate is slow (a number of seconds to transfer 100k of data). But what does it mean to limit a USB serial port speed to 115200 baud? Is the average data rate restricted to 115200? 6. I will just use the Bluetooth connection -- it seems to transfer files at about the same speed as the USB connection. Stephen Irons ======================================================================= This email, including any attachments, is only for the intended addressee. It is subject to copyright, is confidential and may be the subject of legal or other privilege, none of which is waived or lost by reason of this transmission. If the receiver is not the intended addressee, please accept our apologies, notify us by return, delete all copies and perform no other act on the email. Unfortunately, we cannot warrant that the email has not been altered or corrupted during transmission. =======================================================================
