Re: g_serial and cdc_acm communications

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On May 13, 2010, at 10:11 AM, Ron Madrid wrote:

> This is the last (failing) transfer that occurs.  The third
> line is my app receiving information about the data it should
> expect, and the size of the transfer in dwords, 0x7d0 (8000
> bytes).  I then see, in subsequent lines, 7 * 1024 bytes
> received (Bi) followed by 832 bytes received which totals up
> to 8000 bytes.

I suspect it's because that host controller is waiting for the end of
the transfer.  832 bytes is an exact multiple of 64-bytes, which means
that the the HC is waiting for a short packet, or up to your transfer
size, which appears to be 1024.

Rob.

The information and any attached documents contained in this message
may be confidential and/or legally privileged.  The message is
intended solely for the addressee(s).  If you are not the intended
recipient, you are hereby notified that any use, dissemination, or
reproduction is strictly prohibited and may be unlawful.  If you are
not the intended recipient, please contact the sender immediately by
return e-mail and destroy all copies of the original message.
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux