I am trying to write a tty driver....
So as usual I tried compiling driver that I got from Linux
Device Driver Book..
I've attached the same file here...
My problem is..when I try to load this module I get this
error.
kobject_add failed for ttty3 with -EEXIST, don't try to
register things with the same name in the same directory.
[<c04d48bf>] kobject_shadow_add+0x150/0x182
[<c04d4a39>] kobject_set_name+0x2b/0x92
[<c053bee1>] device_add+0xa3/0x513
[<c04d45b7>] kobject_get+0xf/0x13
[<c04d492f>] kobject_init+0x2f/0x3f
[<c053c8a9>] device_create+0x77/0x9a
[<c051fe87>] tty_register_device+0xb5/0xbd
[<c0490033>] remove_tree+0x142/0x499
[<c0495245>] create_proc_entry+0x90/0xa4
[<c04968d5>] proc_tty_register_driver+0x32/0x5b
[<c05212b9>] tty_register_driver+0x191/0x19a
[<dd8530e1>] tiny_init+0xe1/0xf8 [tiny_tty]
[<c0429aac>] blocking_notifier_call_chain+0x17/0x1a
[<c043a419>] sys_init_module+0x1610/0x1749
[<c04551e8>] __handle_mm_fault+0x37e/0xa80
[<c046586e>] __fput+0x137/0x161
[<c0403cf6>] sysenter_past_esp+0x5f/0x85
=======================
Tiny TTY driver v2.0
And strange thing is.. I can see it in lsmod.
I also like to know that how can I test my tty driver...?
Is it the case that once we load tty driver..all console
get to use it..?
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tiny_tty.c
Description: Binary data
