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[Qemu-devel] USB Asynchronous I/O
From: |
Salil Bijur |
Subject: |
[Qemu-devel] USB Asynchronous I/O |
Date: |
Thu, 15 Nov 2007 03:18:46 +0530 |
Hello,
I've been testing Bluetooth-USB in QEMU for an arm-based processor
with a Linux guest.
When a bluetooth dongle is added, there is a continuous sending of
bulk and interrupt packets synchronously (using the USBDEVFS_BULK
ioctl) making qemu extremely slow and unusable.
I wanted to know if it is a good idea to send these bulk and interrupt
transfers asynchronously using the SUBMITURB and REAPURBNDELAY ioctls
in a way similar as isochronous transfers in usb-linux.c.
Is there any reason why only isochronous packets are being sent
asynchronously when the same can be done for other types?
Thanks,
Salil
- [Qemu-devel] USB Asynchronous I/O,
Salil Bijur <=