On Tue, 03 Jan 2017 04:44:43 +0100, Takashi Sakamoto wrote: > > As of kernel 4.10, ALSA dice driver is expected to be used in default > speed. In most cases, it's S400. While, IEEE 1394 specification describes > the other speed such as S800. > > According to 'TCD30XX User Guide', its link layer controller supports > several transmission speed up to S800[0]. In Dice software interface, > transmission speed in output direction can be configured by asynchronous > transaction to 'TX_SPEED' offset in its address space. S800 may be > available. > > This commit improves configuration of transmission unit before starting > packet streaming for this purpose. The value of 'max_speed' in 'fw_device' > data structure has available maximum speed decided in bus arbitration, > thus it's within capacity of the unit. > > [0] TCD3xx User Guide - TCAT 1394 LLC, Revision 0.9.0-41360 (TC Applied Technologies, May 6 2015) > http://www.tctechnologies.tc/index.php/support/support-hardware/dice-iii-detailed-documentation > > Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx> Thanks, applied now. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
