Thread: Thread for problems getting USB hostmode working.
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kolos is offline kolos
2010-11-17 , 07:46
Posts: 434 | Thanked: 245 times | Joined on Jan 2010
#49
Originally Posted by joerg_rw View Post
N95 looks really weird, from a fast scan it seems N95 is trying to create more than 16 devices, and that fails. ttyACM is coming up (terminal to N95), but no mass storage in first 15 devices

For Canon I see:
[ 9355.010009] usb 1-1: new full speed USB device using musb_hdrc and address 120
[ 9355.164764] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
[ 9355.166290] usb 1-1: New USB device found, idVendor=04a9, idProduct=30b1
[ 9355.166351] usb 1-1: Product: Canon Digital Camera
[ 9355.166351] usb 1-1: Manufacturer: Canon Inc.
Then the log aborts. It seems like Canon needs an awful lot of retries, until it ends up with addr 120. Possibly this device needs some 10s of seconds to initialize after VBUS, prior to starting ENUM.

cheers
jOERG
Joerg, thanks for explanation.

About camera, I attached it in switched off state, so when I initiate VBUS it actually switch on the camera first. I will do the test also with switched on camera and post the log.

N95 has 2 partitions, phone's internal drive and microsd memory card. I will try to connect the phone in PC suite mode without microsd memory and also post the results.

I don't expect from you guys that you will provide us functionality for any device which come across our minds. I'm already exited and satisfied with current progress. I just hope that infos like this can help you to make some additional improvements.

Thanks again!
 

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