-vis On S3c2410x Delta Driver - ((link))

🆗 @vis On S3c2410x Delta Driver ((INSTALL)) - Google Drive. @vis On S3c2410x Delta Driver ((INSTALL)) - Google Drive

#include <linux/module.h> #include <linux/fs.h> #include <linux/dma-mapping.h> #include <mach/regs-video.h> -vis On S3c2410x Delta Driver -

While the S3C2410X is now considered legacy (superseded by S3C2440, S3C64xx, and modern i.MX or Allwinner chips), its Delta Driver pattern lives on in DRM (Direct Rendering Manager) drivers for panels where atomic_check and atomic_commit compute the exact same "delta" for MIPI DSI and eDP interfaces. 🆗 @vis On S3c2410x Delta Driver ((INSTALL)) -

static long vis_delta_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) struct vis_delta_device *vis = filp->private_data; switch(cmd) case VIS_SET_BRIGHTNESS: // Map Delta-sigma value to LCD PWM writel(arg, vis->reg_base + S3C2410_LCDCON5); break; case VIS_GET_TOUCH_RAW: copy_to_user((void __user *)arg, vis->delta_sigma_samples, sizeof(vis->delta_sigma_samples)); break; and modern i.MX or Allwinner chips)

Because the S3C2410X is an ARM-based target, the driver must be built using a cross-compiler on a host PC before being transplanted. Application in Virtual Instrumentation (VIs)

#define DRIVER_NAME "vis_delta"

A custom ioctl call is implemented: