On May 8, 2013, at 11:53 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Wed, May 08, 2013 at 05:40:57PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: >> On 08:34 Wed 08 May , Greg KH wrote: >>> On Wed, May 08, 2013 at 04:34:43PM +0200, Arnd Bergmann wrote: >>>>> +#define ASC_MAJOR 204 >>>>> +#define ASC_MINOR_START 40 >>>> >>>> I don't know what the current policy is on allocating major/minor numbers, >>>> but I'm sure you cannot just reuse one that is already used. >>> >>> I agree, why are you trying to create a new tty device name? Can't you >>> use the existing ttyS name and minor number as you will not have any >>> other type of serial device on this system? >> >> Greg on ST STB for more than 10 years we use ttyASC I'll prefer ttySx > > For 10+ years you have had an out-of-tree serial driver? yes ST have it out of tree for very long time even I puts them to come mainline > What > major/minor numbers did you use for it? http://git.stlinux.com/?p=havana/com.st.havana.kernel.git;a=blob;f=drivers/serial/stm-asc.h;h=79e003ffeb21df55a6af94774fc9c4b3d8de18e9;hb=HEAD 52 #define ASC_MAJOR 204 53 #define ASC_MINOR_START 40 same as in this patch > >> on the DTB SoC you have one one IP present the st,asc > > I don't understand, what do you mean by this? > > confused, just mention there is not hardware reason to not use the generic ttySx in place of ttyAS as we have only one IP that handle serial on this family of SoC personally I'll switch to ttySx Best Regards, J.-- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
