Displaying 1 result from an estimated 1 matches for "keyspan_setup_urb".
2009 Feb 26
0
Anyone successfully using CentOS 5 and a Keyspan USA-19HS USB-Serial Adapter?
...s
have interrupt transfer type and one where they are bulk endpoints.
The default UHCI configuration uses the interrupt input endpoints.
The keyspan driver, OTOH, assumes that the device has only bulk
endpoints (all URBs are initialized by calling usb_fill_bulk_urb
in keyspan.c/ keyspan_setup_urb). This causes the interval field
of the input URBs to have a value of zero instead of one, which
''accidentally'' worked with Linux at least up to 2.6.17.11 but
stopped to with 2.6.18, which changed the UHCI support code handling
URBs for interrupt endpoints. The pat...