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authorPete Zaitcev <zaitcev@redhat.com>2006-12-31 09:43:10 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2007-02-08 02:44:34 +0300
commit6f23ee1fefdc1f80bd8a3ab04a1c41ab2dec14c9 (patch)
tree36a5241c29333580de3e3c75e2c62edc1cdf583c /drivers/usb/image
parenta8ef36bc0a5fe973bddaa54a5a07cda29e04a602 (diff)
downloadlinux-6f23ee1fefdc1f80bd8a3ab04a1c41ab2dec14c9.tar.xz
USB: add binary API to usbmon
This patch adds a new, "binary" API in addition to the old, text API usbmon had before. The new API allows for less CPU use, and it allows to capture all data from a packet where old API only captured 32 bytes at most. There are some limitations and conditions to this, e.g. in case someone constructs a URB with 1GB of data, it's not likely to be captured, because even the huge buffers of the new reader are finite. Nonetheless, I expect this new capability to capture all data for all real life scenarios. The downside is, a special user mode application is required where cat(1) worked before. I have sample code at http://people.redhat.com/zaitcev/linux/ and Paolo Abeni is working on patching libpcap. This patch was initially written by Paolo and later I tweaked it, and we had a little back-and-forth. So this is a jointly authored patch, but I am submitting this I am responsible for the bugs. Signed-off-by: Paolo Abeni <paolo.abeni@email.it> Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/image')
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