diff options
| -rw-r--r-- | minuitwrp/graphics_fbdev.cpp | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/minuitwrp/graphics_fbdev.cpp b/minuitwrp/graphics_fbdev.cpp index afc4151c9..066be8dae 100644 --- a/minuitwrp/graphics_fbdev.cpp +++ b/minuitwrp/graphics_fbdev.cpp @@ -108,21 +108,31 @@ static void set_displayed_framebuffer(unsigned n) } static GRSurface* fbdev_init(minui_backend* backend) { - int fd = open("/dev/graphics/fb0", O_RDWR); - if (fd == -1) { - perror("cannot open fb0"); - return NULL; + int retry = 20; + int fd = -1; + while (fd == -1) { + fd = open("/dev/graphics/fb0", O_RDWR); + if (fd == -1) { + if (--retry) { + // wait for init to create the device node + perror("cannot open fb0 (retrying)"); + usleep(100000); + } else { + perror("cannot open fb0 (giving up)"); + return NULL; + } + } } fb_fix_screeninfo fi; if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) { - perror("failed to get fb0 info"); + perror("failed to get fb0 info (FBIOGET_FSCREENINFO)"); close(fd); return NULL; } if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) { - perror("failed to get fb0 info"); + perror("failed to get fb0 info (FBIOGET_VSCREENINFO)"); close(fd); return NULL; } |