Hi, Thanks , Here brk interrupt is not interrupt perse. We have do the polling of the status register in the UART. Should the polling be done as a kernel module or user module? Thanks in advance Rgds Narendra ----- Original Message ----- From: "Krishnakumar. R" <krishnakumar@naturesoft.net> To: "Narendra Kulkarni" <narendra@spacomp.com> Sent: Monday, February 02, 2004 16:00 Subject: Re: brk interrupt in serial port > Hello, > > If you are sure that an interrupt will be generated, > then, you should go for it in the kernel. > > If you are going for interrupt driven approach, > the code in the kernel should contain the > registering of the interrupt (the interrupt which would > be raised) and proper interupt handler function code. > > Another way would be to do polling. > Where you check the status of the registers > from the userland module or the kernel module. > When status indicates that interupt has occured then > you can do the necessary work. > > Hope this might be of some help to you. > Regards, > KK. > > > On Monday 02 February 2004 15:36, Narendra Kulkarni wrote: > > Hello all, > > > > I dont know whether this question should be asked here or not ? > > > > We are developing a product (Linux based touchscreen). The rxd line of > > the serial port has been kept at zero for a complete character time so as > > to generate a brk interrupt. I want to trap the brk interrupt on the serial > > port. Should we write a kernel module or user module to check whether the > > interrupt has occured or not. > > > > > > Thanks in advance > > > > Rgds > > Narendra > > SPA Computers Ltd, > > 2010, 100 Ft Road, > > HAL 2nd Stage, > > Indiranagar, > > Bangalore 560008 > > > > Tel : +91-80-25265348/25267981/25268469 > > Fax : +91-80-25260818 > > www.spacomp.com > > -- > HomePage: http://puggy.symonds.net/~krishnakumar > > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
