# Run a cryptographic hash benchmark ./testbd_tool --crypto --algo sha256 --src 0x82000000 --len 4194304
# Perform a secure DMA copy (user‑space program) ./testbd_tool --dma --src 0x80000000 --dst 0x81000000 --len 1048576 --encrypt Sec S3c2443x Test B D Driver
/* 3. Initialize hardware */ sec_testbd_reset(testbd); sec_testbd_configure(testbd, DEFAULT_MODE); # Run a cryptographic hash benchmark
err_unregister: unregister_chrdev_region(dev_num, 1); return ret; if (ret) return ret
/* 2. Request IRQ */ ret = devm_request_irq(&pdev->dev, platform_get_irq(pdev, 0), sec_testbd_isr, 0, dev_name(&pdev->dev), testbd); if (ret) return ret;
The Sec S3c2443x Test B D Driver is a reference implementation of a low‑level device driver for the Sec S3c2443x series of System‑on‑Chip (SoC) peripherals. It is primarily used in embedded Linux environments to validate the functionality of the “Test B D” hardware block, which provides a programmable interface for secure data handling, cryptographic acceleration, and DMA‑based I/O.