USB 2.0 Re: [maemo-developers] speeding up MMC (with success)

Koen Kooi wrote: Frantisek Dufka schreef: Yet when usb cable is inserted kernel says something about full speed config. Unfortunately full speed is 12Mbps USB 1.1 speed. USB 2.0 is called high speed. usb 2.0 high speed = 12Mbps usb 2.0 full speed = 480MBps welcome to usb marketing speak :(

Re: USB 2.0 Re: [maemo-developers] speeding up MMC (with success)

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Frantisek Dufka schreef: Koen Kooi wrote: Frantisek Dufka schreef: Yet when usb cable is inserted kernel says something about full speed config. Unfortunately full speed is 12Mbps USB 1.1 speed. USB 2.0 is called high speed. usb 2.0 high speed

Re: USB 2.0 Re: [maemo-developers] speeding up MMC (with success)

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Koen Kooi schreef: Frantisek Dufka schreef: Koen Kooi wrote: Frantisek Dufka schreef: Yet when usb cable is inserted kernel says something about full speed config. Unfortunately full speed is 12Mbps USB 1.1 speed. USB 2.0 is called high speed.

Re: USB 2.0 Re: [maemo-developers] speeding up MMC (with success)

Koen Kooi wrote: And by the looks of it the omap1710 as well :( Yes, found it - drivers/usb/gadget/omap_udc.c * omap_udc.c -- for OMAP full speed udc; most chips support OTG. No word about high speed. Looks like high speed UDC is rare thing. Found only this

Re: [maemo-developers] speeding up MMC (with success)

Hi! I tried your kernel with my 1GB extremetech and 2GB Kingston. No problems so far and twice the speed (will try 4x later today). Thanks for this free and very much needed hardware-upgrade, this will certainly become of even greater value when we will be able to use the mmc as root :-)

Re: [maemo-developers] speeding up MMC (with success)

Sascha Heid wrote: Hi! I tried your kernel with my 1GB extremetech and 2GB Kingston. No problems so far and twice the speed (will try 4x later today). Sounds good :-) this will certainly become of even greater value when we will be able to use the mmc as root :-) Yes, unfortunately

Re: [maemo-developers] speeding up MMC (with success)

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Frantisek Dufka schreef: Yes, unfortunately current USB mass storage functionality seems to use only USB 1 speed so transfer over USB still has ~800KB/s limit. I wonder why USB 2.0 is not used. It is mentioned in N770 specs

[maemo-developers] speeding up MMC (with success)

Hello, recently I bought 2GB Kingston MMCmobile card and was a bit frustrated by N770 mmc slot speed. Basically any card inserted into N770 has speed ~1.3MB/s. I digged a bit in kernel sources and googled for MMC specs and discovered this: - maximum legacy MMC bus clock speed is 20Mhz - MMC