diff options
Diffstat (limited to 'libvo/vo_vesa.c')
| -rw-r--r-- | libvo/vo_vesa.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libvo/vo_vesa.c b/libvo/vo_vesa.c index bebfcfef90..3494d5eaef 100644 --- a/libvo/vo_vesa.c +++ b/libvo/vo_vesa.c @@ -28,6 +28,7 @@ #include <pwd.h> #include <sys/types.h> #include <sys/stat.h> +#include <fcntl.h> #include "video_out.h" @@ -1009,6 +1010,7 @@ static void check_events(void) static uint32_t preinit(const char *arg) { int pre_init_err = 0; + int fd; if(verbose>1) printf("vo_vesa: preinit(%s) was called\n",arg); if(verbose > 2) printf("vo_vesa: subdevice %s is being initialized\n",arg); @@ -1018,6 +1020,11 @@ static uint32_t preinit(const char *arg) #ifdef CONFIG_VIDIX else if(vidix_name) pre_init_err = vidix_preinit(vidix_name,&video_out_vesa); #endif + // check if we can open /dev/mem (it will be opened later in config(), but if we + // detect now that we can't we can exit cleanly) + fd = open("/dev/mem", O_RDWR); + if (fd < 0) + return -1; if(verbose > 2) printf("vo_subdevice: initialization returns: %i\n",pre_init_err); return pre_init_err; |