RE: where is the printf source for busybox?

2014-03-13 Thread Kim Chan
f. Now I can see busybox printf at least through the uart port though it's not yet shown on the LCD(which I'm trying to map to tty1 and the shell). Thank you! Chan From : "Dave Hylands" Sent : 2014-03-13 02:54:40 ( +09:00 ) To : Kim Chan

RE: Does register_chrdev function make device file under /dev ?

2014-03-12 Thread Kim Chan
tinfo/kernelnewbies From : "valdis.kletni...@vt.edu" Sent : 2014-03-12 21:14:49 ( +09:00 ) To : Kim Chan Cc : Kernel , kernelnewbies@kernelnewbies.org Subject : Re: Does register_chrdev function make device file under /dev ? On Tue, 11 Mar 2014 08:01:26 -,

RE: where is the printf source for busybox?

2014-03-12 Thread Kim Chan
tself? Thanks in adv. Chan From : "Mohan L" Sent : 2014-03-12 15:31:24 ( +09:00 ) To : Kim Chan Cc : Dave Hylands , kernelnewbies@kernelnewbies.org Subject : Re: where is the printf source for busybox? ssize_t attribute_hidden _cs_write(void *c

Please help.. trying to use USB keyboard to open a shell on LCD display

2014-03-11 Thread Kim Chan
Hello, folks, It is a comfort to me that I have people to ask questions here and I hope I could be answering to some hard quetions someday. I've beeing trying to attach a USB keyboard to our embedded system to open a shell on the LCD display using framebuffer console. The USB host controller

RE: where is the printf source for busybox?

2014-03-11 Thread Kim Chan
ase correct me. Thanks and regards, Chan From : "Dave Hylands" Sent : 2014-03-12 13:39:11 ( +09:00 ) To : Kim Chan Cc : kernelnewbies@kernelnewbies.org Subject : Re: where is the printf source for busybox? Hi, On Tue, Mar 11, 2014 at 6:44 PM, Kim Chan mailto:c...@etri.re.kr>&g

RE: where is the printf source for busybox?

2014-03-11 Thread Kim Chan
Hi, Mohan, Thanks! so the printf is name chagned to _printf by the compiler. I missed that. Chan From : "Mohan L" Sent : 2014-03-12 11:07:45 ( +09:00 ) To : Kim Chan Cc : kernelnewbies@kernelnewbies.org Subject : Re: where is the printf source f

where is the printf source for busybox?

2014-03-11 Thread Kim Chan
Hi, I've had this question for some time past and I would like to know the answer now.. I wanted to follow a printf in busybox but couldn't find the source of the printf function. Then I throught probably the printf is provided by the system library where printf is connected to proper linux sys

RE: Does register_chrdev function make device file under /dev ?

2014-03-11 Thread Kim Chan
anybody tell me some direction? From : "Kernel" Sent : 2014-03-11 14:44:09 ( +09:00 ) To : Kim Chan Cc : kernelnewbies@kernelnewbies.org Subject : Re: Does register_chrdev function make device file under /dev ? On Mar 10, 2014, at 10:25 PM, 김찬 mailto:c...@etri.re.k

Re: How to use pr_debug

2014-02-26 Thread Kim Chan
Yes, if you add a line below, console_loglevel = 8; // 8 is debug level The debug messages will also be printed to your console (serial port). (Maybe this also goes to /var/log/debug ?) you could revert it back after use. Chan From : "valdis.kletni...@vt.edu"