diff options
Diffstat (limited to 'fbdev.c')
| -rw-r--r-- | fbdev.c | 39 |
1 files changed, 28 insertions, 11 deletions
@@ -316,6 +316,25 @@ static void fb_unmap_memory(struct device *dev) * Open/close */ +static int fb_update_info(struct device *dev) +{ + int ret; + + ret = ioctl(dev->fd, FBIOGET_FSCREENINFO, &dev->fix_info); + if (ret < 0) { + printf("Error updating fixed screen info.\n"); + return ret; + } + + ret = ioctl(dev->fd, FBIOGET_VSCREENINFO, &dev->var_info); + if (ret < 0) { + printf("Error updating variable screen info.\n"); + return ret; + } + + return 0; +} + /* * fb_open - Open a frame buffer device * @dev: FB device @@ -338,18 +357,10 @@ static int fb_open(struct device *dev, const char *devname) return dev->fd; } - ret = ioctl(dev->fd, FBIOGET_FSCREENINFO, &dev->fix_info); - if (ret < 0) { - printf("Error opening device %s: unable to get fixed screen " - "info.\n", devname); - close(dev->fd); - return ret; - } - - ret = ioctl(dev->fd, FBIOGET_VSCREENINFO, &dev->var_info); + ret = fb_update_info(dev); if (ret < 0) { - printf("Error opening device %s: unable to get variable screen " - "info.\n", devname); + printf("Error opening device %s: unable to get screen info.\n", + devname); close(dev->fd); return ret; } @@ -497,6 +508,9 @@ static int fb_set_format(struct device *dev, unsigned int bpp) fb_print_var(dev, &var_info); + /* Fixed screen information might have changed, re-read it. */ + fb_update_info(dev); + return 0; } @@ -552,6 +566,9 @@ static int fb_set_resolution(struct device *dev, int xres, int yres, fb_print_var(dev, &var_info); + /* Fixed screen information might have changed, re-read it. */ + fb_update_info(dev); + return 0; } |