On 08/10/2011 01:30 PM, Pekka Enberg wrote:
> On 8/10/11 2:56 AM, Asias He wrote:
>> This patch fixes strange characters in serial console.
>>
>> Before:
>>
>> [ 0.448000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> �[ 0.695000] serial8250: ttyS0 at I/O 0x3f8 (irq = 0) is a 16550A
>> �[ 0.942000] serial8250: ttyS1 at I/O 0x2f8 (irq = 0) is a 16550A
>> �[ 1.189000] serial8250: ttyS2 at I/O 0x3e8 (irq = 0) is a 16550A
>> [ 1.194000] Non-volatile memory driver v1.3
>>
>> After:
>>
>> [ 0.541000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> [ 0.788000] serial8250: ttyS0 at I/O 0x3f8 (irq = 0) is a 16550A
>> [ 1.041000] serial8250: ttyS1 at I/O 0x2f8 (irq = 0) is a 16550A
>> [ 1.294000] serial8250: ttyS2 at I/O 0x3e8 (irq = 0) is a 16550A
>> [ 1.309000] Non-volatile memory driver v1.3
>>
>> Signed-off-by: Asias He<asias.hejun@xxxxxxxxx>
>> ---
>> tools/kvm/term.c | 7 +++++--
>> 1 files changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/kvm/term.c b/tools/kvm/term.c
>> index 2a3e1f0..85b41e7 100644
>> --- a/tools/kvm/term.c
>> +++ b/tools/kvm/term.c
>> @@ -5,6 +5,7 @@
>> #include<unistd.h>
>> #include<sys/uio.h>
>> #include<signal.h>
>> +#include<ctype.h>
>>
>> #include "kvm/read-write.h"
>> #include "kvm/term.h"
>> @@ -57,8 +58,10 @@ int term_putc(int who, char *addr, int cnt)
>> if (who != active_console)
>> return -1;
>>
>> - while (cnt--)
>> - fprintf(stdout, "%c", *addr++);
>> + while (cnt--) {
>> + if (isascii(*addr))
>
> Do things like backspace still work with this?
Sure. Have a try ;-)
http://en.wikipedia.org/wiki/ASCII
>
>> + fprintf(stdout, "%c", *addr++);
>> + }
>>
>> fflush(stdout);
>> return cnt;
>
>
--
Best Regards,
Asias He
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