Hi Again

I try this configuration on /boot/uEnv.txt 
optargs=capemgr.enable_partno=BB-UART1,BB-UART2,BB-UART4

but it doesn't work.

The only way I could do this, is by using this command
echo BB-UART2 > /sys/devices/bone_capemgr.*/slots

Can someone explain me why ?



On Tuesday, June 10, 2014 5:37:26 PM UTC-3, cla...@logmatch.com.br wrote:
>
> Thanks Robert !!!
>
> On Tuesday, June 10, 2014 11:43:28 AM UTC-3, RobertCNelson wrote:
>>
>> On Tue, Jun 10, 2014 at 9:34 AM,  <cla...@logmatch.com.br> wrote: 
>> > Well, 
>> > that was one problem. 
>> > 
>> > After searching in this forum I discover that I could use /dev/ttyO1 
>> > 
>> > So I use 
>> > # dmesg |grep serial 
>> > and 
>> > # cat /proc/tty/driver/OMAP-SERIAL 
>> > to confirm that. 
>> > 
>> > # cat /proc/tty/driver/OMAP-SERIAL 
>> > serinfo:1.0 driver revision: 
>> > 0: uart:OMAP UART0 mmio:0x44E09000 irq:88 tx:558 rx:0 RTS|CTS|DTR|DSR 
>> > 1: uart:OMAP UART1 mmio:0x48022000 irq:89 tx:75 rx:37 brk:1 
>> CTS|DSR|CD|RI 
>> > 
>> > # dmesg |grep serial 
>> > [    0.210444] omap_uart 44e09000.serial: did not get pins for uart0 
>> error: 
>> > -19 
>> > [    0.210719] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88) is 
>> a 
>> > OMAP UART0 
>> > [    5.035048] gserial_setup: registered 1 ttyGS* device 
>> > [ 1763.473407] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 89) is 
>> a 
>> > OMAP UART1 
>> > 
>> > But now I have other doubts. 
>> > 
>> > Why there are only 2 serials ? 
>>
>> because you only loaded two.. 
>>
>> Add this to your u-boot bootargs and you'll get a few more: 
>>
>> capemgr.enable_partno=BB-UART1,BB-UART2,BB-UART4 
>>
>> (depending on factory v3.8.x kernel) 
>>
>> Regards, 
>>
>> -- 
>> Robert Nelson 
>> http://www.rcn-ee.com/ 
>>
>

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