Dear Friends, I am using polling based serial driver by specifying buffer size(cbuf->len) to zero through configuration tool. When I call scanf function from application layer, I found that it is calling serial_read function from file packages\io\serial\current\src\common\serial.c.
For given function, static Cyg_ErrNo serial_read(cyg_io_handle_t handle, void *_buf, cyg_uint32 *len) I printed the argument values and found that *len=-1, which makes "while (size++ < *len) " condition true always and my program gets stuck there. I did similar thing for serial_write and I got *len value correct when I call Printf function from user application. I try to debug the /libc/sdio/current/src/input/scanf.cxx, but I couldn't understand it. Can anyone please guide me where to look at for the error, in my case *len = -1 which should be greater than 1 ? Thank you, Have a Good Day, Ankur. -- View this message in context: http://old.nabble.com/Problem-with-SCANF-function-tp27874746p27874746.html Sent from the Sourceware - ecos-discuss mailing list archive at Nabble.com. -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
