Hi Wu, On Sun, Dec 06, 2009 at 03:01:48PM +0800, Wu Zhangjin wrote: > + > +#define EC_VER_LEN 64 > + > +static int black_screen_handler(int status) > +{ > + char *p, ec_ver[EC_VER_LEN]; > + > + p = strstr(loongson_cmdline, "EC_VER="); > + if (!p) > + memset(ec_ver, 0, EC_VER_LEN); > + else { > + strncpy(ec_ver, p, EC_VER_LEN); > + p = strstr(ec_ver, " "); > + if (p) > + *p = '\0'; > + } > + Hmm, why do you copy and parse command lineinstead of using module param and also doing it just once? > + /* Seems EC(>=PQ1D26) does this job for us, we can not do it again, > + * otherwise, the brightness will not resume to the normal level! */ > + if (strncasecmp(ec_ver, "EC_VER=PQ1D26", 64) < 0) > + yeeloong_lcd_vo_set(status); > + > + return status; > +} Thanks. -- Dmitry