Hi all, I still have some problems with the egt20 i2c driver. I am running a 3.1.1 kernel with the following patches applied to it: * [PATCH 1/7 v4] i2c-eg20t: Fix bus-idle waiting issue - https://lkml.org/lkml/2011/10/12/3 * [PATCH 2/7 v4] i2c-eg20t: Modify returned value s32 to long - https://lkml.org/lkml/2011/10/12/1 * [PATCH 3/7 v2] i2c-eg20t: Fix 10bit access issue - https://lkml.org/lkml/2011/10/12/7 * [PATCH 4/7 v4] i2c-eg20t: Separate error processing - https://lkml.org/lkml/2011/10/12/6 * [PATCH 5/7 v4] i2c-eg20t: add stop sequence in case wait-event timeout occurs - https://lkml.org/lkml/2011/10/12/5 * [PATCH 6/7 v4] i2c-eg20t: Fix flag setting issue - https://lkml.org/lkml/2011/10/12/2 * [PATCH 7/7 v4] i2c-eg20t: Add initialize processing in case i2c-error occurs - https://lkml.org/lkml/2011/10/12/4 * [PATCH] i2c-eg20t: modified the setting of transfer rate. - http://marc.info/?l=linux-i2c&m=131702145913299&w=2 I have a PCA9555 (drivers/gpio/gpio-pca953x.c) at i2c addr 0x48. [ 21.505138] pca953x 0-0048: probe [ 21.505157] i2c i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 21.505168] i2c i2c-0: master_xfer[1] R, addr=0x48, len=2 [ 21.505180] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :adap->p_adapter_info->pch_i2c_suspended is 0 [ 21.505190] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :After invoking I2C_MODE_SEL :flag= 0x0 [ 21.505206] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :I2CCTL = 390 msgs->len = 1 [ 21.505220] i2c_eg20t 0000:02:0c.2: pch_i2c_start :I2CCTL = 390 [ 21.505353] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.508667] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :writing 2 to Data register [ 21.508772] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.510043] i2c_eg20t 0000:02:0c.2: pch_i2c_repstart :I2CCTL = 3b0 [ 21.510058] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :return=1 [ 21.510068] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :After invoking I2C_MODE_SEL :flag= 0x1 [ 21.510209] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.517833] i2c_eg20t 0000:02:0c.2: pch_i2c_sendack :I2CCTL = 3a0 [ 21.517962] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.517992] i2c_eg20t 0000:02:0c.2: pch_i2c_sendnack :I2CCTL = 3a0 [ 21.518114] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.518230] i2c_eg20t 0000:02:0c.2: pch_i2c_stop :I2CCTL = 3a8 [ 21.518251] i2c i2c-0: master_xfer[0] W, addr=0x48, len=1 [ 21.518261] i2c i2c-0: master_xfer[1] R, addr=0x48, len=2 [ 21.518271] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :adap->p_adapter_info->pch_i2c_suspended is 0 [ 21.518281] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :After invoking I2C_MODE_SEL :flag= 0x0 [ 21.518296] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :I2CCTL = 398 msgs->len = 1 [ 21.518311] i2c_eg20t 0000:02:0c.2: pch_i2c_start :I2CCTL = 398 [ 21.518442] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.520533] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :writing 6 to Data register [ 21.520627] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.520709] i2c_eg20t 0000:02:0c.2: pch_i2c_repstart :I2CCTL = 3b8 [ 21.520721] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :return=1 [ 21.520731] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :After invoking I2C_MODE_SEL :flag= 0x1 [ 21.520868] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.522841] i2c_eg20t 0000:02:0c.2: pch_i2c_sendack :I2CCTL = 3a8 [ 21.522968] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.523533] i2c_eg20t 0000:02:0c.2: pch_i2c_sendnack :I2CCTL = 3a0 [ 21.523660] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.523785] i2c_eg20t 0000:02:0c.2: pch_i2c_stop :I2CCTL = 3a8 [ 21.523807] i2c i2c-0: master_xfer[0] W, addr=0x48, len=3 [ 21.523817] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :adap->p_adapter_info->pch_i2c_suspended is 0 [ 21.523827] i2c_eg20t 0000:02:0c.2: pch_i2c_xfer :After invoking I2C_MODE_SEL :flag= 0x0 [ 21.523842] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :I2CCTL = 398 msgs->len = 3 [ 21.523856] i2c_eg20t 0000:02:0c.2: pch_i2c_start :I2CCTL = 398 [ 21.523988] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.524570] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :writing 4 to Data register [ 21.524677] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.524791] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :writing 0 to Data register [ 21.524899] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 28 [ 21.524948] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :writing 0 to Data register [ 21.525056] i2c_eg20t 0000:02:0c.2: pch_i2c_cb :PCH_I2CSR = 9 [ 21.525666] i2c_eg20t 0000:02:0c.2: pch_i2c_getack :return-71 [ 21.525746] i2c_eg20t 0000:02:0c.2: pch_i2c_writebytes :Receive NACK for slave addresssetting [ 21.525760] pca953x 0-0048: failed writing register [ 21.525829] pca953x 0-0048: interrupt support not compiled in [ 21.526029] i2c-core: driver [pca953x] registered [ 21.526380] pca953x 0-0048: uevent What informations do you need to get this fixed? thanks -- Christian Gmeiner, MSc -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
