Hi, Poll() is not supported, but you could do select() call. Please try it. It had worked for us.
Murali Karicheri Software Design Engineer Texas Instruments Inc. Germantown, MD 20874 email: m-kariche...@ti.com ________________________________ From: davinci-linux-open-source-boun...@linux.davincidsp.com [mailto:davinci-linux-open-source-boun...@linux.davincidsp.com] On Behalf Of zuowenping Sent: Monday, August 17, 2009 2:41 AM To: davinci-linux-open-source Subject: does vpfe driver support select or poll sys call? dear all: I want to use select method to query data in capture buffer(ioctl VIDIOC_DQBUF ),but when i look up the driver in davinci_vpfe.c,I cann't find it realized it: static struct file_operations vpfe_fops = { .owner = THIS_MODULE, .open = vpfe_open, .release = vpfe_release, .ioctl = vpfe_ioctl, .mmap = vpfe_mmap }; It has not realized poll() function in the file_operations set! so it is uselessly for sys_call select i thinked! but the v4l2 interface support the system call! 2009-08-17 ________________________________ zuowenping
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