Hello *, There is a bug in s3c2410_udc driver, which triggers when using custom UDC command for USB pull-up. As a result driver is always calling user defined UDC command with wrong parameter (S3C2410_UDC_P_DISABLE) instead of just passing the parameter to the user defined function. BR. Vilo --- Linux-2.6.39-wp/2.6.39/drivers/usb/gadget/s3c2410_udc.c 2011-05-19 06:06:34.000000000 +0200 +++ Linux-2.6.39/linux-paytec/drivers/usb/gadget/s3c2410_udc.c 2011-06-14 11:59:55.000000000 +0200 @@ -1566,7 +1566,7 @@ return; if (udc_info->udc_command) { - udc_info->udc_command(S3C2410_UDC_P_DISABLE); + udc_info->udc_command(cmd); } else if (gpio_is_valid(udc_info->pullup_pin)) { int value; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html