# "Resource temporarily unavailable"

**URL:** <https://forums.digi.com/t/resource-temporarily-unavailable/7245>\
**Category:** Realport\
**Created:** [March 29, 2005, 4:53pm UTC](https://forums.digi.com/t/resource-temporarily-unavailable/7245 "2005-03-29T16:53:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tome](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@tome](https://forums.digi.com/u/tome)\
**Post date:** [March 29, 2005, 4:53pm UTC](https://forums.digi.com/t/resource-temporarily-unavailable/7245/1 "2005-03-29T16:53:54Z")

</div>

hello

i have a digi portserver ts 2 that i would like to use under a linux system.  
i have installed the driver and and connected to the device properly.  
for my test i was using a windows notebook that was feeding the portserver and the linux box to read the data.

my problem is the following:  
if i start to read the data (cat /dev/ttyaa00) and after that feeding the ts from the windows, than everything works fine.  
if i start the feeding and than start the cat, than i got problems.

here is 2 scenarios that i have to illustrate my problems.  
the following commands were executed in the up-to-down order

==== ==============================================  
[root@varpalota root]# cat /proc/dgrp/info  
version: 1.8-1

rawreadok: 0x00000001 (1)  
pollrate: 0x00000014 (20)  
alt\_fail\_open: 0x00000000 (0)

mon\_debug: 0x00000000 (0)  
net\_debug: 0x00000000 (0)  
tty\_debug: 0x00000000 (0)  
comm\_debug: 0x00000000 (0)  
ports\_debug: 0x00000000 (0)  
[root@varpalota root]# cat /dev/ttyaa00  
==== ========================================  
C: emp ome\>type 93000359\_j.txt \> COM1  
==== ==============================================

[root@varpalota root]# ditty /dev/ttyaa00 -a; fuser /dev/ttyaa00; ditty  
/dev/ttyaa00 -a  
/dev/ttyaa00: Resource temporarily unavailable  
/dev/ttyaa00: Resource temporarily unavailable  
==== ========================================

# ==== ============================================== [root@varpalota root]# ditty /dev/ttyaa00 -a onstr \033[5i offstr \033[4i term ansi maxcps 100 maxchar 50 bufsize 100 edelay 100 forcedcd -altpin -fastbaud (9600) -printer -rtstoggle -rtspace -dtrpace -ctspace -dsrpace -dcdpace DTR+ RTS+ CTS- CD- DSR- RI- startc = 0x11 stopc = 0x13 -aixon astartc = 0x0 astopc = 0x0 speed 9600 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^; erase = ^?; kill = ^U; eof = ^D; eol = ; eol2 = ; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke

# =====================================================================

# =====================================================================

another case:  
==== ==============================================  
[root@varpalota root]# cat /dev/ttyaa00  
==== ========================================  
C: emp ome\>type 93000359\_j.txt \> COM1  
==== ==============================================

[root@varpalota root]# cat /dev/ttyaa00

[root@varpalota root]# ps ax |grep cut|grep -v grep; ditty /dev/ttyaa00  
-a; fuser /dev/ttyaa00; ditty /dev/ttyaa00 -a  
/dev/ttyaa00: another process waiting on open  
/dev/ttyaa00: another process waiting on open  
[root@varpalota root]#

anybody has any idea what i’m doing wrong?