Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4b914dc0493edff19ff698a18198a173a14ba9d2
Commit:     4b914dc0493edff19ff698a18198a173a14ba9d2
Parent:     9467d64b0e88763914c01f71ddf591b166c4f526
Author:     Ivo van Doorn <[EMAIL PROTECTED]>
AuthorDate: Mon May 14 23:06:01 2007 +0200
Committer:  Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Sun Jul 8 22:16:36 2007 -0400

    [PATCH] eeprom_93cx6: Add comment for 1us delay after pulse
    
    This will add a comment for the 1us delay which is taken
    after the pulse has been switched. The 1us delay is based
    on the specifications so that should be made clear.
    
    Signed-off-by: Ivo van Doorn <[EMAIL PROTECTED]>
    Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
---
 drivers/misc/eeprom_93cx6.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
index bfcb434..0d6d742 100644
--- a/drivers/misc/eeprom_93cx6.c
+++ b/drivers/misc/eeprom_93cx6.c
@@ -39,6 +39,12 @@ static inline void eeprom_93cx6_pulse_high(struct 
eeprom_93cx6 *eeprom)
 {
        eeprom->reg_data_clock = 1;
        eeprom->register_write(eeprom);
+
+       /*
+        * Add a short delay for the pulse to work.
+        * According to the specifications the minimal time
+        * should be 450ns so a 1us delay is sufficient.
+        */
        udelay(1);
 }
 
@@ -46,6 +52,12 @@ static inline void eeprom_93cx6_pulse_low(struct 
eeprom_93cx6 *eeprom)
 {
        eeprom->reg_data_clock = 0;
        eeprom->register_write(eeprom);
+
+       /*
+        * Add a short delay for the pulse to work.
+        * According to the specifications the minimal time
+        * should be 450ns so a 1us delay is sufficient.
+        */
        udelay(1);
 }
 
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