Hi, On 02/12/15 03:48, Siarhei Siamashka wrote: > The existing cedar driver code already has a semaphore, but is > only doing some strange and pointless manipulations with it. > Now use this semaphore to actually protect /dev/cedar_dev from > being simultaneously opened by multiple users. > > When the cedar driver is already occupied, any new attempts to > open /dev/cedar_dev just block until the current user closes it. >
Not that I would bother much, but it might lock out some blob versions. At least some versions open cedar_dev twice, once for memory allocation and once for mmaping the register space. The "old" version used in xbmc and willswang's vlc would work, but the "open source" (allwinner-zh/media-codec) one doesn't. (but it doesn't really work anyway...) Regards, Jens -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
