Hi, I have an ONDA N501HS (namely a rebranded ZTE MF330) UMTS pc card.
I am currently using this card with the sierra driver (as in current kernels). However I am noticing the following problem: - when I use the card for downloading from the internet, everything is fine; - when I use the card for uploading to the internet, after a few tens kB, the card freezes. Freezing goes as follows: the card provides 3 ports: ttyUSB0 to ttyUSB2. The port ttyUSB0 that is used for data stops working completely. It becomes impossible to talk to it, until the pc-card is extracted and put again in the pcmcia slot. The other ports keep working. I wonder if this might have something to do with flow control (or lack thereof) that causes the card to be flooded with data from the computer until it locks. I believe that flow control might be the issue, since if I use upload programs that let me decide the data rate and I pick a low enough rate everything goes just fine. I have also seen that the ZTE MF330 has just been moved from the sierra driver to the option driver. Is there any chance that this might fix my problem? If this is the case, having my distribution kernel source, once I have applied the patch, how can I rebuild _only_ the sierra and the option modules? Thanks, Sergio - To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
